5 Best Air Purifier With Air Quality Sensor 2023

Are you concerned about the air quality in your home? Have you ever thought about investing in an air purifier, but weren’t sure which one to get? With so many options on the market today, finding a reliable air purifier can be daunting. Fortunately, we’ve done the research for you and found that the best priced and most effective option is an air purifier with a built-in air quality sensor.

Not only will this device improve the overall health of your family by removing potential allergens from their environment, but it also offers precise control over what kind of pollutants linger around them. Read on to learn more information about why investing in an air purfier with an integrated sensor might be just what’s needed to give everyone at home peace of mind.

What Is Measured by Air Quality Sensor:

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The air quality sensor found in an air purifier measures small particles in the air like dust, pollen, pet dander, mold spores, and more. It also monitors temperature, humidity, and other environmental factors to ensure that your home is always as healthy as possible.

By measuring these parameters regularly, you can get a better idea of what kind of pollutants may be floating around your home without having to manually check each room.

Are air quality sensors accurate?

Yes, air quality sensors are generally accurate in measuring the Air Quality Index (AQI). The accuracy of these sensors depends on factors such as their placement, calibration and maintenance.

When properly maintained, air quality sensors should provide reliable readings of the AQI in a given area. They can also be used to monitor changes in air pollution over time and to identify areas where pollutants are concentrated.

It is important to note that while air quality sensors may be accurate, they cannot detect all pollutants or individual sources of pollution. To get a complete picture of your local air quality, other measurement methods such as visual observations or chemical testing may be necessary.

How Many Sensor Used in Air Purifier:

Most air purifiers with integrated sensors come equipped with a combination of sensors that measure particulate matter, temperature, humidity, and other potential pollutants in the air. This helps ensure that the air quality around your home is always being monitored and filtered as needed.

Air purifiers with air quality sensors are typically more expensive than basic models without these features but they are worth the extra money as they can help detect and filter out particles that can’t be seen with the naked eye.

Types of Air Quality Sensor:

There are several different types of air quality sensors available for use in air purifiers. Some of these are as follow.

  • Photo-Ionization Detector (PID)
  • Optical Particle Detector (OPD)
  • Electrochemical Cell (ECC)

Types of Air Quality Sensor

Photo-Ionization Detector (PID). This device uses a light source, usually ultraviolet, to measure the electrical charge in small particles that it detects. These particles can be as small as 0.1 micrometers and are typically not visible to the naked eye. PIDs work by counting the number of ions in a given space and then providing an accurate reading of total particulate matter present in that area.

Optical Particle Detector (OPD) This is a type of air quality sensor that uses laser beams to detect particles in the air. While this technology can detect particles as small as 0.01 micrometers, it is not as sensitive or accurate as PIDs and ECCs. Regardless of which type of air quality sensor you choose, all three are effective in helping to monitor your home’s indoor air quality.

Electrochemical Cell (ECC). This device works by measuring changes in electrical current when exposed to certain gases and vapours, including volatile organic compounds (VOCs). This allows it to detect even lower concentrations of harmful pollutants than PIDs can.

To conclude, investing in an air purifier with an integrated air quality sensor can help protect the health of your family and provide peace of mind knowing that their environment is being monitored and filtered for dangerous pollutants.

Air Purifier With Air Quality Sensor:

Air purifiers with air quality sensors are designed to detect and remove pollutants from the air in your home, giving you peace of mind. These devices use a combination of sensors to measure particulate matter, temperature, humidity, volatile organic compounds (VOCs) and other environmental factors. By detecting these particles before they reach your family or pets, an air purifier with an integrated sensor can help protect their health.

Top 6 Best Air Purifier With Air Quality Sensor

  2. DYSON TP04
  3. ​ LEVOIT CORE 300S
  5.  Winix 5500-2 Air Purifier


41F qCFUJKL. SL500Coway AIRMEGA 400S is designed to be a powerful air purifier with a larger form than its predecessor, the AIRMEGA 300S. It’s 22.8 inches in height, 14.8 inches in both depth and width, and weighs 24.7 lbs. 

The design of this air purifier includes intake grills on all sides as well as an outlet air vent on top that features a control panel with one on/off button and two air filter indicators. Coway claims that this air purifier is the strongest and most durable one it has ever made, with well-built materials intended to last for a long time.

The control panel on top is quite simple, consisting of just one on/off button and two air filter indicator lights. This type of panel makes operation easy while still providing important information such as the current air quality in your room.

AIRMEGA 400S also includes Wi-Fi connectivity, allowing you to connect it to your home network and monitor or control it using an accompanying mobile app. This allows for greater convenience when managing or adjusting the settings of your device.

Coway Airmaga 400s Filter:

The Coway Airmaga 400s comes with 3 stage filtration system

  1. Pre-filter
  2. Max2 Filter
  3. Deodorization filter

51qwCF yDsL. SL500Pre-Filter: The pre-filter is an effective washable pre-filter which is designed to capture larger airborne particles such as pet hair, dust and lint. This filter should be rinsed with water once every two weeks in order to maintain its effectiveness.

Max2 Filter: This filter combines the power of both activated carbon and true HEPA filters. This system is capable of capturing up to 99.97% of airborne particles as small as 0.3 microns. It also helps reduce volatile organic compounds and odors such as NH3, CH3CHO and other gases present in the air.

Deodorization Filter: This filter is designed to trap and neutralize unpleasant smells and odors present in the air. The special material used in this filter can absorb a wide range of odors, making it highly effective at reducing bad smells in any room or area.

These filters work together to create a powerful filtration system which effectively cleanses the air from pollutants and other impurities that are present in the atmosphere. The filter system also helps to reduce allergens, mold and other microbes that can cause health problems.

With regular replacement of these filters every six months, you can be sure that your Coway Airmaga 400s will continue to provide clean and fresh air for years to come.


The Coway AIRMEGA 400S is a powerful air purifier that can cover up to 1560 square feet with its 2X to 4X ACH. With the double ACH of just 780 square feet, it still provides a reliable CADR of 340 Dust/ 350 Smoke/ 400 Pollen (cfm). This is remarkable performance for such a large room air purifier and is difficult to match in the same price range.

The Coway AIRMEGA 400S also has several other features that make it an ideal choice, such as its Smart Mode, which automatically adjusts the fan speed based on the air quality of your home. The Coway AIRMEGA 400S has a filter life indicator, so you know when it’s time to replace your filters, saving you money over time.

Finally, with its sleek design and quiet operation, the Coway AIRMEGA 400S is sure to improve the look and feel of any room it occupies. With these features combined with its impressive room coverage capabilities, the Coway AIRMEGA 400S is an excellent choice for a powerful air purifier.

Coway Airmega 400s Sound:

Coway AIRMEGA 400S utilizes advanced noise reduction technology, which makes it incredibly quiet. The motor and fan inside the device run smoothly and silently to enhance your comfort. On low settings, you can barely notice any noise coming from the air purifier.

At higher or maximum settings, the sound produced is still not intrusive; it makes a soft white noise that resembles the sound of a waterfall or running water. This is perfect for those who prefer to have some background noise in their space.

The AIRMEGA 400S has 3 fan speeds which you can choose from (low, medium and high). Regardless of what setting you select, the air purifier still produces less than 52 decibels. To give an idea of how quiet this is, it’s almost as low as a whisper and quieter than most libraries! It’s also suitable for use in bedrooms as it won’t disrupt your sleep.

Coway AIRMEGA 400S is definitely one of the best air purifiers when it comes to being ultra quiet. Its advanced technology ensures silent operation, making it an ideal choice for those who need a powerful air purifier without the loud noise.


The AIRMEGA 400S is an air purifier designed to clean large rooms and has a power consumption of 64 watts. This makes it much more efficient than other air purifiers, such as the Honeywell HPA300 which consumes 125 watts and the Blueair Classic 605 which consumes 100 watts.

It also features an energy-saving Eco Mode that helps reduce energy consumption even further. The AIRMEGA 400S can save you money on your electricity bills – only costing around $24 per year. This costs less than some comparable models like the Winix WAC9500 or Winix 5500-2, yet offers double cleaning power for the same price.

The AIRMEGA 400S is an energy-efficient air purifier that can save you money while providing powerful cleaning performance. It also includes other features such as Smart Mode and Auto Mode which automatically adjust the fan speed to provide optimum air quality at all times. This makes it an ideal option for those who want a cost-effective and effective way of keeping their home’s air clean.

Coway Airmega 400s Pros & Cons

  • Awesome technology from Coway
  • Stunning design
  • Large room coverage
  • Smart App Features
  • Lower performance than expected

Coway Airmaga 400s Sensor & Other Feature:

The Coway Airmega 400S is a high-end air purifier that features the world’s most accurate Smart Sensor. This unique feature allows for automatic adjustment of fan speed in response to changes in indoor air quality, ensuring optimal performance at all times.

Coway 400s has an intuitive air quality indicator which displays real-time readings on the LCD panel and LED filter replacement indicators so you know when it’s time to replace your filters. The AIRMEGA 400S also boasts an advanced air quality sensor which includes four levels of detection: PM2.5 particles, allergens, volatile organic compounds (VOCs), and odors.

This highly sensitive detector can identify even the smallest particles as small as 0.3 microns, giving you the most accurate readings on indoor air quality. It has an Eco Mode that can lower power consumption to help reduce electricity costs.

Finally, with its Smart App Enabled function, users are able to connect the AIRMEGA 400S with their smartphone and receive real-time notifications on air quality while keeping track of filter lifetime and scheduling cleaning cycles remotely.

2. DYSON TP04:

3196JoPMdTL. SL500The Dyson TP04 is the fourth generation of Dyson air purifiers and features a distinctive, bladeless design that delivers a premium finish with its sleek and rich look.

It stands 41.5 inches high and has an 8.1 inch amp diameter, making it bigger than the first-gen Dyson Pure Cool Tower but smaller than the giant Blueair Pro XL.

The device is also incredibly light, weighing just 11 lbs, allowing you to move it around your home easily. The TP04 includes an LCD display located above the air intake grill which provides data such as temperature, humidity level and air quality information at a glance.

Plus, with its larger amp diameter, this model is capable of projecting stronger air flow than ever before. The TP04 also features a control panel which allows you to adjust settings such as fan speed and sleep timer, as well as change between auto, manual and boost mode.

You can also use this panel to switch on smart air sensing technology or link your phone with Bluetooth for even more control over your device. With all these features combined, the Dyson TP04 is an amazing choice when it comes to air purification solutions.

DYSON TP04 Filters:

The Dyson TP04 uses three different filters to purify the air in your home –

  • Pre-filter
  • HEPA filter
  • Activated carbon filter


PRE-FILTER: The Pre-filter helps to trap larger particles like dust mites, pet fur and lint from the air so that they don’t get clogged into the True HEPA filter. It extends the life of the HEPA filter and helps with maintaining an optimal performance for the overall air purifier.

HEPA FILTER: The True HEPA filter is designed to capture 99.97% of all particles as small as 0.3 microns, including pollen, bacteria and pet dander. It’s made up of borosilicate microfibers, pleated over 238 times, and tested to meet the standards of any allergy-related organizations such as Asthma and Allergy Foundation of America (AAFA).

ACTIVATED CARBON FILTER: The Activated Carbon filter is responsible for removing household odors and gases such as formaldehyde, benzene, and nitrogen dioxide. It’s made up of tris-impregnated carbon which works to adsorb any household gases or chemicals in the air.

DYSON TP04 Room Coverage:

The Dyson TP04 air purifier is designed to effectively clean a room up to 500 square feet, which can meet the needs of many users. It’s equipped with an advanced HEPA filter that captures 99.97% of particles as small as 0.3 microns and releases cleaner air back into the room.

Its features a dual-layer filtration system consisting of an activated carbon filter to capture odors and gases; this combination ensures the removal of airborne pollutants in your home or office.

The three fan speeds allow you to choose between silent operation, medium suction power or maximum suction power, allowing you to adjust the airflow according to your needs. With its unique design, it also includes built-in sensors and automatically adjusts the fan speed to purify air more quickly and efficiently.

The OLED display located at the top of the air purifier provides clear information on its life cycle and filter status, so you can always stay updated about your device’s condition.

 DYSON TP04 Power Consumption:

The Dyson TP04 boasts a power consumption of only 56 watts, making it one of the most energy efficient air purifiers on the market. With such a low wattage, it is able to maintain its high CADR rating without consuming excessive energy like other air purifiers that require more power than the TP04 does.

This translates to significant cost savings for consumers over time, since running the air purifier for 8 hours each day would amount to barely $20 in electricity costs annually.

With this reduced energy usage comes a corresponding decrease in your carbon footprint as well as improved indoor air quality. The TP04 is truly an impressive device that offers maximum efficiency and affordability while still delivering powerful results.

The Dyson TP04 is also compatible with the Dyson Link app, letting you access detailed air quality data and control your device remotely. This makes it easy to maintain optimum indoor air quality without having to manually adjust settings. All these features make the Dyson TP04 a must-have for any home looking for a powerful and efficient air purifier.


The noise of the Dyson TP04 is quite unique because it has something called Acoustics Amplification. This technology amplifies sound waves as they pass through the air, allowing them to reach your ears faster and deliver a greater impact than regular air conditioners or fans could.

The sound profile of this fan is also designed to be deeper in pitch, giving it a more natural feel than many others on the market. As the speed increases, so does the intensity of the sound, which can become quite loud depending on how high you turn up the fan’s setting.

However, if you’re looking for a way to cool down without being overwhelmed by white noise then this product could be perfect for you. Plus, with its modern design and state-of-the-art silent operation, it will keep you cool while still remaining whisper quiet.

So if you’re looking for a fan that can provide powerful yet discreet cooling, then the Dyson TP04 is something worth considering. Its advanced silent operation and deep sound makes it great for getting a good night’s sleep or study.

DYSON TP04 Sensor and Other FEATURES:416bXOXSdZL. SL500

The Dyson TP04 is a powerful tower air purifier that comes with many features to give you the best possible experience in removing allergens and pollutants from your home. It has an LCD screen that displays the current air quality status, as well as a graph to show how clean your home is.

The device also comes with 10 different fan speeds and oscillation settings up to 350°, allowing it to reach all corners of your room. It even has a new Diffuse Mode which reverses the air flow for winter use. For convenience there is a remote control which attaches magnetically onto the device and can also be controlled via Dyson Link app or Alexa.

The Dyson TP04’s advanced sensors are able to detect temperature, humidity levels, PM level, and Volatile Organic Compounds (VOCs) or oxidizing gases. This data is used to automatically adjust the fan speed according to the air quality of your home.

Combined with its Auto Mode feature, you can set it and forget it knowing that your Dyson TP04 will be taking care of your air quality needs. The Dyson TP04’s features and sensors make it a powerful device for keeping your home free from allergens and pollutants.


41tfqvjT27L. SL500The Levoit Core 300S is a compact 14-inch air purifier, with 8.7 inches in diameter. It has the signature cylindrical shape and real 360 degree air inlet, which are both features seen on many other Levoit devices, as well as its predecessor – the original Core 300 model.

This design helps to enhance the bottom-to-top air flow system concept from the very first LV-H132. The air purifier can be placed virtually anywhere in your house without limiting its performance.

At the time of writing, this device only comes with one color option – plain but sophisticated, featuring the Levoit logo front and center. There is also a vent for the air sensor located behind the back.

For easy access, the top control panel has been updated to accommodate additional built-in functions. It features touch sensitive buttons and an LED display that allows you to control various settings such as fan speed and timer.

The new engine helps to make the Levoit Core 300S lightweight – only 5.95 pounds – more portable than its predecessor, LV-H132. In addition, it is ETL certified and made of non-toxic materials for safe use in your home or office.


The Levoit Core 300S is designed with a three-stage filtration system to capture airborne particles down to 0.3 microns.

  • Pre-filter
  • True HEPA Filter
  • Activated Carbon Filter

Pre-filter: The first stage of filtration is the pre-filter, which is a nylon filter that captures larger particles such as dust, lint, fibers, hair and pet fur. This filter should be vacuumed regularly as it can only effectively trap these larger particles for a limited amount of time.

True HEPA Filter: To reduce allergens, viruses, pollen and bacteria particles down to 0.3 microns, the Core 300S utilizes a H13 True HEPA Filter. This filter has been enhanced with an airtight sealing strip to ensure that the impurities stay inside the purifier, which increases its effectiveness.

Activated Carbon Filter: The ARC (Activated Reliable Carbon) filter uses a special blend of activated carbon to effectively trap smoke and odors as well as Volatile Organic Compounds (VOCs).

The Core 300S offers customizable options for users with pet allergies, toxins in their air or smokey environments. For pet allergies, Levoit has created a special version – the Levoit Core P350 – which comes equipped with a higher-grade granular carbon filter to capture pet and culinary odors.

For homes with high levels of toxics or chemicals in the air, there is the Toxin Absorber, which has a VOC filter specifically designed to capture these particles. Smoke is another issue that can be addressed with the Smoke Remover option, which comes equipped with an Activated Carbon Filter to trap smoke and odors.


The Levoit Core 300S is Energy Star certified, meaning it can effectively clean the air in a room up to 215 square feet. This makes it ideal for bedrooms and other small spaces. Its VortexAir technology enables it to maintain high power while cleaning the air every 12 minutes.

The CADR (Clean Air Delivery Rate) of this model is 134 Dust/ 126 Smoke/ 154 Pollen (cfm). This means that it will be able to effectively remove particles from the air, resulting in cleaner air for you and your family. Its ACH (Air Changes Per Hour) rating of 5X indicates that your room will be cleaned quickly and efficiently.

All these features add up to make the Levoit Core 300S a great choice for those looking for an air purifier that can efficiently and effectively clean the air in their smaller spaces. With its Energy Star rating, CADR, ACH, and VortexAir technology, you can be sure that the Levoit Core 300S will leave you with cleaner and fresher air.


The Levoit Core 300S is incredibly quiet due to its QuietKEAP technology and advanced AC capacitor motor. Its low setting is completely silent, while the highest speed produces only 48 decibels (db). This noise level is equivalent to a running air conditioner at 100 feet.

Although it can be heard, it’s not loud enough to be bothersome or intrusive. This means that the Levoit Core 300S makes an ideal choice for bedrooms, nurseries, and other areas where quiet operation is needed.

It also features advanced filtration capabilities with a 360° cylindrical filter that captures pet hair, dust mites, pollen, smoke particles and more. With six cleaning modes and adjustable fan speeds, the Levoit Core 300S can easily adjust to different purification needs.

Plus, its light indicators and air quality monitor let you know when it’s time to clean or replace the filter. With these features, the Levoit Core 300S is perfect for anyone looking for a quiet yet powerful air purifier.


The Levoit Core 300S is one of the most energy-efficient air purifiers available on the market today. With its advanced AC capacitor motor, it has a power consumption of just 26 watts, making it one of the best for saving money on electric bill.

It also has an Energy Star rating and can be used in many rooms without having to worry about high electricity bills. Moreover, with its auto mode, you may even save more money on your power bill as the device automatically adjusts fan speed depending on air quality levels.

By using it for 8 hours each day all year long, you will roughly spend around $9 annually in electricity costs. This is an excellent way to ensure that you are breathing clean air while simultaneously being cost-effective.


The LEVOIT Core 300S is equipped with a laser dust sensor that offers accurate and immediate readings of the indoor air quality. This allows users to quickly adjust their settings in order to ensure optimal air circulation and filtration.

The Levoit Core 300S also features an Auto Mode and Smart Sensor setting, which can be used to automatically detect changes in air quality and react accordingly. It also includes Alexa or Google assistant integration for voice control, as well as a timer, child lock, LED indication for filter replacement, and other useful features.

All of these additional aspects make the Core 300S one of the most advanced air purifiers on the market today. Finally, the LEVOIT Core 300S is compatible with the VeSync app, making it one of the most convenient air purifiers on the market.

With this app, users can monitor and regulate their indoor air quality at any time from anywhere. This makes it much easier to stay on top of your air filtration needs while conveniently controlling your device from a distance.


31g9TEq2QVL. SL500The control panel of the Airdoctor AD3000 UltraHEPA air purifier is simple and easy to use, with intuitive symbols and instructions. It allows you to easily adjust the fan speed in four levels, including turbo mode for maximum efficiency.

You can also set a timer to turn off the device autonomously after two hours or eight hours of continuous operation. In terms of design, this Airdoctor AD3000 UltraHEPA Air Purifier follows a stubby console style that doesn’t feel either premium or practical.

The curves at the bottom make it unstable while big borders above and around the device make it appear stout. The sealed front plate might reduce incoming polluted air efficiency but is still useful in regards to internal construction.

The fan motor is big for high fan power, and its storage is very smart at delivering more air output in silence. It measures 23.5 inches in height and 16 inches in width, weighing 24 lbs. This makes it quite heavy, so you should make sure to place it out of the reach of your children or pets for safety reasons.

All these features come together to create an effective yet low-maintenance Airdoctor AD3000 UltraHEPA Air Purifier.


The Airdoctor AD3000 UltraHEPA is a four-stage air cleaning system that works to capture and remove harmful airborne pollutants from your home.

  • Pre-Filter
  • Activated Carbon Filter
  • UltraHEPA Filter
  • Ionizer

Pre-Filter: The pre-filter is designed to target larger contaminants such as dust and animal hair, and is washable so that it can be reused under normal use.

Activated Carbon Filter: This dual-action filter combines both activated carbon and VOCs, or Volatile Organic Compounds, to remove toxic ozone, gas odors and VOCs from the air. It has a lifespan of 6 months before it needs to be replaced.

UltraHEPA Filter: This True HEPA filter is designed to capture ultra-fine PM 2.5 particles from the air and is independently tested to remove 100% of airborne particles at 0.003 microns in size, which is 100 times smaller than the standard HEPA filter rating of 0.3 microns.

Ionizer: The ionizer works together with the other filters to help eliminate smells and odors, keeping your air fresh and clean. It can be easily switched on or off as required.

The Airdoctor AD3000 UltraHEPA has been found to perform well in a 300 square foot room that was filled with pollutants, filtering out 99.95% of particles down to 0.3 microns. While this performance is on par with other air purifiers such as the Sharp FX-J80UW, AIRMEGA 300, and Dyson TP04, it falls short of the Austin Air Allergy Machine and Medify MA-112.


The Airdoctor AD3000 UltraHEPA Room Coverage is one of the best features that this air purifier has to offer. With an ACH rating of 3X-5X, it can clean a room as large as 900 square feet in just 12 minutes.

It’s CADR rating of 339 Dust/ 343 Smoke/ 366 Pollen (cfm) makes it suitable for mid and high range air purifiers. This means that the Airdoctor AD3000 UltraHEPA not only cleans your room efficiently but also provides superior coverage within its recommended space.

With the filtration efficiency up to 99%, the Airdoctor AD3000 UltraHEPA effectively removes airborne contaminants such as dust, pollen and smoke from the air. It is designed with an advanced HEPA filter with antimicrobial protection to ensure that the air you breathe in your home remains clean and healthy.

To suit different needs and preferences, the Airdoctor AD3000 UltraHEPA offers three fan speed modes. The Low setting runs quietly at 33 dB(A), while the Medium setting is a bit louder at 44 dB(A). Finally, the High mode runs faster and noisier at 62 dB(A).


The Airdoctor AD3000 UltraHEPA air purifier is designed to provide clean and healthy air with minimal noise. Its WhisperJet technology allows the fan motor to run at a lower decibel level, making it one of the quietest air purifiers on the market.

The lowest sound level recorded during tests was 30 decibels (db) – an incredibly low sound that can barely be heard in a quiet room.

However, when running at its highest speed, the Airdoctor AD3000 UltraHEPA produces up to 62 decibels of noise. This is still quieter than many other models, however more noticeable than some others such as Rabbit Air MinusA2 or Alen BreatheSmart 75i.

The Airdoctor AD3000 UltraHEPA is a great choice for those looking for silent operation yet powerful air purification. Its WhisperJet technology and low decibel levels make it perfect for creating an atmosphere of peace and comfort in any space.


The Airdoctor AD3000 UltraHEPA is an efficient air purifier that has been certified by Energy Star. It operates using 84 watts of power and runs for at least 8 hours per day to be effective. This means that the approximate cost of running this air purifier for 8 hours a day is around $30 per year, making it an economical choice when compared with other air purifiers in the same price range.

In addition to its low energy consumption, the Airdoctor AD3000 UltraHEPA is also designed to conserve energy while still providing powerful air filtration capabilities. It has a unique three stage filtration system which includes a pre-filter, activated carbon filter, and a HEPA filter to capture particles as small as 0.3 microns.

This system allows you to keep your air clean while minimizing energy consumption and cost. The Airdoctor AD3000 UltraHEPA also has a range of other features which help to conserve energy, such as an Auto Mode setting which automatically adjusts the fan speed when needed for optimal performance.

It is designed with an oscillating feature which ensures that the air is evenly distributed throughout the room, reducing the need for additional fans or air conditioners in some cases.It has a timer function so that you can set it up to only run when needed and turn off after a given time period, further saving on energy costs.


The Airdoctor AD3000 UltraHEPA comes with a unique Smart Sensor that combines both electrostatic and infrared sensors for the most accurate measurements. The sensor is able to detect dust, pollen, smoke, odor, volatile organic compounds (VOCs) as well as airborne mold and bacteria.

It can also measure temperature, humidity and air speed. This information is then used by the air purifier’s Auto Mode to adjust fan speed according to the result of the air quality tests. In addition to its advanced sensor technology, the Airdoctor AD3000 UltraHEPA offers several other features that enhance its performance and usability.

For example, it has an LED dimmer feature which allows you to reduce brightness of the LED indicator lights and display on the device. It also has a timer setting that can be programmed up to 24 hours, so you can set it to turn off after a certain amount of time.

The machine also comes with an LED indicator for filter replacement which will alert you when it is time to change the filters. This ensures optimal performance and helps extend the life of your air purifier.

Its patented Active Carbon Filter Technology uses activated carbon to absorb odors and VOCs, providing superior air filtration and purification. All these features combine to make Airdoctor’s AD3000 UltraHEPA a top-of-the-line air purifier.

 5.Winix 5500-2:

31EbSDDpP0L. SL500The Winix 5500-2 has a well designed control panel with five function buttons. The buttons are easy to press and have an LED Sensor with three different colors to indicate the quality of air in your room.

There is also an intake grill on front of the device which brings in the air. It’s important to note that you should not put it near direct sunlight as this could damage the product.

The outlet air vent is located at the top, and while it leans back a bit, some users may find it hard to direct air flow directly towards them. There are two handles located on either side making it easy to move around and weighing only 15.4lbs, so you can take it anywhere in the house with ease.

The buttons are located near the top, making them easily accessible when you put the purifier on a side table. While placing it on a hard flat surface is recommended, you can also place it on other surfaces as well. This makes using the Winix 5500-2 much easier and more comfortable than its successor – the Winix WAC9500.


The Winix 5500-2 features three filters that work together to provide clean and healthy air in your home.

  • Carbon Coted Pre-Filter
  • HEPA Filter
  • Winix Plasma Wave

Carbon Coted Pre-Filter: The first filter is the pre-filter, made of high-grade granular activated carbon. This filter traps larger particles like pet hair, pet dander, dust and pollen, as well as reducing odors and smoke. It is also washable, so you can use it for a long period of time before needing to replace it.

HEPA Filter: The second filter is the True HEPA Filter, which captures 99.97% of particles down to 0.3 microns in size. This filter helps remove allergens, viruses, pollen, mold and fungi from the air. As this is not a washable filter, it must be replaced on an annual basis to maintain optimal performance.

Winix Plasma Wave: The third filter is Winix’s PlasmaWave Technology which further reduces the amount of pollutants in your home by forming hydroxyl radicals that attack airborne pollutants like viruses, bacteria, germs, odors and chemical gases (VOCs). These pollutants are then converted into harmless water vapor or air molecules. The PlasmaWave Technology can be switched on or off, depending on your preferences.

All three filters work together to provide clean and healthy air in your home while still being energy efficient. By replacing the HEPA filter annually and washing the carbon pre-filter regularly, you can ensure that the Winix 5500-2 is always operating at an optimum level.

With its powerful True HEPA filter and innovative PlasmaWave technology, the Winix 5500-2 is a great choice for anyone looking for a top of the line air purifier. It provides excellent performance and can help keep your home free from all sorts of airborne pollutants. With its energy-efficient design, it is also an economical choice for those looking to save money on their energy bills.


The WINIX 5500-2 is an impressive air purifier that offers a great coverage area at an affordable price. It has a 360 square feet of AHAM verified room size, which is more than most competitors in its price range. It also has 4X ACH, meaning that it can exchange the air in your room every 15 minutes to ensure clean air throughout the house.

The Air Clean Delivery Rate (CADR) of the WINIX 5500-2 is 243 Dust/232 Smoke/246 Pollen (cfm), demonstrating its incredible power in cleaning the air within a given room. This CADR rating surpasses other models such as Rabbit Air BioGS 2.0, despite Winix 5500-2 being a much cheaper option.

Therefore, if you are looking for an air purifier with great room coverage and CADR rating at an affordable price, then the Winix 5500-2 is a great choice. It can cover larger rooms and effectively clean the air for those with allergies and asthma. This makes the Winix 5500-2 a great value for money air purifier.


The Winix 5500-2 Air Purifier is designed to reduce the noise level as much as possible while still delivering optimal performance. Thanks to its True HEPA filter, it can capture 99.97% of particles down to 0.3 microns in size, including dust, pollen, pet dander and smoke.

It also has a 4-stage air cleaning system that includes an odor reducing carbon filter for cooking odors and other offensive smells. When it comes to sound levels, the Winix 5500-2 Air Purifier is fairly quiet even on its highest fan speed setting (Turbo).

It produces up to 58 decibels (db) in Turbo mode, which is comparable to normal conversations or the noise level in a busy office. On the lowest setting (Sleep), it produces just 28 decibels, which is much quieter than other brands and perfect for nighttime use in bedrooms or nurseries.


When it comes to energy efficiency, the Winix 5500-2 is definitely one of the most efficient air purifiers on the market. This is because it only requires a mere 70 watts to run at its highest setting. This means that if you are able to keep it running at its lowest setting for most of the time, then you can actually reduce the power consumption even further.

In terms of cost, this translates into an annual bill of around $25 per year if you use the air purifier for 8 hours a day. Compared with other models such as Honeywell HPA300 or Winix WAC9500, which require more than double this amount (150 and 140 watts respectively), this makes the Winix 5500-2 a great deal.

Furthermore, the combination of powerful fan speeds and energy efficiency makes it an ideal choice for those who are looking to save money on their electricity bills without sacrificing air purification quality.

With its HEPA filter that can remove 99.97% of airborne particles, as well as its activated carbon filter which traps odors and VOCs, the Winix 5500-2 is a great option for anyone looking to ensure consistent air quality in their home.


Winix 5500-2 is equipped with an advanced Smart Sensor which helps detect the change in air quality and adjust the fan speed accordingly. This is a great feature that allows you to save energy while still providing optimal air purification.

The LED life indicator also provides reminders on when it’s time to replace your filter, providing additional convenience for users. Further, Winix 5500-2 comes with a convenient remote control, allowing users to easily operate the device from any distance.

Unfortunately, Wi-Fi connectivity is not available with this model. If you want all the conveniences of having a smart air purifier, then other models such as GermGuardian CDAP5500BCA and Blueair Sense+ are more suitable options, offering Wi-Fi connectivity and powerful air filtration.

Overall, Winix 5500-2 offers some great additional features that can provide optimal air purification while saving energy.


313Asqw7iIL. SL500The control panel of the Hathaspace Smart True HEPA Air Purifier 2.0 is very intuitive and easy to use. It features a touch-sensitive display with customizable settings, allowing you to quickly customize the air quality in your home.

The design of the Hathaspace Smart True HEPA Air Purifier 2.0 also takes into account its size and larger fan capacity for delivering more powerful air cleaning power. The purifier is 27 inches tall and 16.5 inches wide, making it one of the largest air purifiers on the market today.

On top of that, the HATAHSPACE HSP002 includes a unique 360-degree air intake system that helps draw more pollutants from all directions, ensuring it can quickly and effectively purify the air in your home.

In addition, it features a powerful motor that runs at up to 120 CFM for efficient air cleaning. The Hathaspace Smart True HEPA Air Purifier 2.0 also has five speed settings and an automatic sleep mode so you can easily adjust the power level depending on your needs.

Overall, the HATHASPACE HSP002 is designed to provide maximum performance while still being simple and easy to use. Its combination of size, power, and design make it one of the best air purifiers available today.


The Hathaspace HSP002 air purifier is comprised of five distinct filters, each performing a specific role in the overall filtration system.

  • Nylon Pre-filter
  • Polypropylene Pre-filter
  • True HEPA filter
  • Activated Carbon filter
  • Cold Catalyst filter

Nylon Pre-Filter: The first filter is a washable nylon pre-filter which is designed to capture and remove larger particles like pet hair and lint from the air before they can enter into any of the other filters.

Polypropylene Pre-Filter: This high-end pre-filter is designed to capture and remove medium particles from the air, extending the life of the True HEPA filter. It also has an antibacterial treatment coating applied to it which helps prevent bacteria and germs from growing on its surface.

True HEPA Filter: This is the core filter in the system and is designed to capture and remove up to 99.97% of airborne particles as small as 0.3 microns, like dust, dust mites, mold spores, pet dander, pollen, and fungi.

Activated Carbon Filter: The activated carbon filter works together with a zeolite filter to adsorb smoke, odors, gases, and even formaldehyde from the air.

Cold Catalyst Filter: This filter is designed to target volatile organic compounds (VOCs) and chemicals in household products. It works in combination with all the other filters to create a powerful filtration system that will eliminate harmful airborne pollutants from your home or office.

With its five-stage filtration system, the Hathaspace HSP002 air purifier can remove up to 99.93% of any particles as small as 0.3 microns, giving you peace of mind knowing that your air is clean and healthy. It has been certified by the California Air Resources Board (CARB) for electrical safety and ozone emission, so it can be used safely in any environment.

The Hathaspace HSP002 air purifier is an effective and efficient option for keeping your home or office clean and healthy. With its five-stage filtration system, it will remove nearly all airborne particles from the air, ensuring you have a safer, cleaner breathing environment.

Furthermore, its CARB certification guarantees that it won’t emit any ozone into the air, so you can rest assured knowing that your air is safe to breathe.


The Hathaspace HSP002 can cover a room of up to 1500 square feet. However, the manufacturer suggests only using it with 1X ACH (air changes per hour). This is much lower than the actual potential of this air purifier; its 4X ACH means that it can exchange air four times per hour.

Moreover, the CADR rating for formaldehyde removal on this device is 94 cfm. This means that while the device may be able to cover a larger area, it will not be as effective at removing formaldehyde from the air in that space.

Ultimately, while the reported coverage of 1500 square feet is accurate, users should take into consideration the airflow capabilities when deciding how large of an area to use the Hathaspace HSP002 in. When it comes to formaldehyde removal, smaller spaces may be better suited for this device.


The Hathaspace Smart True HEPA Air Purifier 2.0 has a unique sound profile that minimizes noise disturbance to the user. On its lowest fan speed, it produces just 30 decibels of noise which is comparable to a whisper or light rustling leaves.

This means you can comfortably have it on overnight without being disturbed by loud noises coming from the purifier.On its highest fan speed, however, the noise level increases up to 60 decibels which is too loud and uncomfortable for sleeping purposes.

The Hathaspace HSP002 was designed with this in mind so users would be able to experience optimal air cleaning performance while still having a comfortable night’s sleep.To get maximum efficiency out of your air purifier, it is best to use the lower fan speed settings and only switch to higher ones when necessary.


The Hathaspace HSP002 air purifier uses a DC motor to reduce power consumption, but still has a 100 watt rated power. This means that if you run it for 8 hours per day, you will pay approximately $36 each year in electricity.

While this is more than the previous model (the HSP001), it can provide much better filtration and performance if used over time. With its efficient design and powerful motor, you can trust that the Hathaspace HSP002 can keep your home safe and clean without breaking the bank.


The Hathaspace Smart True HEPA Air Purifier 2.0 comes equipped with a high-end Smart Sensor that is capable of detecting particles as small as 0.3 microns in size, such as pollen, dust mites, mold spores and pet dander. This feature can help to ensure optimal air quality at all times by automatically adjusting the fan speed according to the level of pollutants detected in the air.

In addition to its advanced sensor technology, the HATHASPACE HSP002 also features several other useful features including a Max setting which allows you to set the purifier on max speed for up to 60 minutes before returning back to its previous running mode; a Timer option so you can plan your cleaning sessions; and a Light Dimmer option that helps keep the LED light from disturbing your sleep.

Finally, the HATHASPACE HSP002 also features an LED indicator for filter replacement as well as a button to reset the filter change reminder instantly. This is done by holding both the Auto Mode and Timer buttons for 3 seconds at a time.

The combination of these advanced sensors and additional features make the Hathaspace Smart True HEPA Air Purifier 2.0 one of the most effective air purifiers available on the market today, making it an ideal choice for anyone looking to improve their home’s air quality.

Related FAQ.

Does air purifier improve AQI?

Yes, an air purifier can improve Air Quality Index (AQI) levels. It does this by filtering out airborne particles and pollutants that contribute to poor AQI scores. Some air purifiers are specifically designed to reduce the concentration of particulate matter (PM), which is one of the primary contributors to bad air quality. By removing these particles from the air, an air purifier can help improve overall AQI scores.

Should I leave air purifier on all day?

It is not advisable to leave an air purifier on all day and night. Air purifiers are designed to remove pollutants from the air, so they will become less effective if left running for too long. This can cause them to pull in more pollutants than necessary and reduce their effectiveness. To get the most out of your air purifier, it should be turned on and off at regular intervals during the day.

How can I lower the AQI in my house?

To lower the Air Quality Index (AQI) in your home, there are a few steps you can take:

1. Remove sources of indoor air pollution such as dust, pet hair, cooking fumes or smoke from cigarettes or candles.

2. Ensure that any ventilation systems are working properly and that windows and doors are sealed to prevent outdoor pollutants from entering the home.

3. Use an air purifier with a HEPA filter to help reduce airborne particles and pollutants in the air.

4. Change your home’s air filters regularly to ensure that they are clean and free of dust and debris.

5. Open your windows and doors to let in fresh air when the outdoor AQI is low.

What does an air purifier sensor detect?

An air purifier sensor can detect a variety of airborne particles, pollutants and gases. It measures the concentration of these substances in the air and sends a signal to the purifier when levels reach unsafe levels.

The types of particles that an air purifier sensor detects depend on its design. Some sensors are designed to detect only particulate matter (PM), while others may be able to detect a wider range of pollutants. Some air purifiers are also equipped with sensors that measure temperature, humidity and other environmental factors.

Air purifier sensors can be used in conjunction with other measurements to help identify sources of pollution and determine the best way to improve air quality.

What is the most accurate sensor?

The most accurate sensor for measuring air quality depends on the pollutants and gases you are trying to measure. For particulate matter, a laser particle counter is generally considered to be the most accurate type of sensor. Laser particle counters measure particles down to 0.3 microns in size and can detect even small amounts of PM in the air.


Overall, it is important to understand the needs of your space and environment when choosing an air purifier. The best course of action is to consider the size of the room, filter types, coverage area, power consumption and additional features before purchasing one.

If you are looking for a large room air purifier, I highly recommend Coway Airmega 400s and Dyson TP04, as they provide excellent air cleaning capabilities. If you are on a budget, then Levoit Core 300s or Winix 5500-2 are great choices. With these tips in mind, you can be sure to find the right air purifier for your needs.