Can You Use An Air Purifier And Humidifier Together?

What are some things you can do to improve your indoor air quality? One common answer is using an air purifier and humidifier together. But can you actually use them together, or will they conflict with each other? In this blog post, we’ll explore the answer to that question and give you some tips on how to get the most out of both devices. Stay tuned!

How Can Air Purifiers Improve Indoor Air Quality?

Air purifiers can improve your indoor air quality by removing a wide variety of contaminants from the air. These include chemicals, particulate matter, allergens and even odors. Many models use HEPA filtration to remove up to 99% of these particles, including those that are as small as 0.3 microns in size.

For reference, a typical human hair is about 100 microns across! If you have allergies or asthma, an air purifier with HEPA filtration could help reduce the symptoms from time spent indoors at home or work. You may also notice less dust on surfaces around your home because clean air will cause less of it to become airborne. In fact, many air purifier marketers claim that their devices can help improve asthma and allergy symptoms, as well as improve mood and reduce fatigue.

Types Of Air Purifiers:

  1. HEPA Air Purifier
  2. Activated Carbon Filters on Air Purifiers
  3. Air Purifiers with UV Technology
  4. Ozone Air Purifier
  5. Negative Ion Air Purifier

HEPA AIr Purifier filters

HEPA Air Purifier

The HEPA air purifier is capable of eliminating up to 99.97% of all airborne particles that are as small as 0.3 microns including bacteria, fungi, pollen, mold spores and many types of dust particles. The HEPA filter must be replaced approximately every three months for optimal results.

Activated Carbon Filters on Air Purifiers

Activated carbon filters are very efficient at removing unpleasant odors from the air. These activated carbon filters are typically designed to remove smoke and other gaseous chemicals from the atmosphere within a room or house; they can also eliminate various VOCs (volatile organic compounds) such as formaldehyde and benzene gases which may be present in the environment due to off-gassing. 

The activated carbon filters are made from organic material which is burned at very high temperatures to induce a catalytic reaction between the carbon and oxygen atoms present in the organic compound.

This process causes bonds to form between molecular oxygen and carbon atoms where other molecules would typically form bonds with hydrogen, nitrogen, sulfur or chlorine compounds instead of oxygen. As a result, activated carbon adsorbs countless numbers of gas molecules onto its surface area which help it to eliminate foul odors from the air within a room in a home or office space.

Air Purifiers with UV Technology

The majority of airborne germs and bacteria in a room can be eliminated by using an air purifier with ultraviolet germicidal technology built into it since UVC light is capable of destroying viruses, molds and spores that are present in the atmosphere. The ultraviolet light will also get rid of many airborne pathogens which carry harmful diseases such as tuberculosis, HIV/AIDS and pneumonia.

Ozone Air Purifier

The ozone air purifier is able to eliminate up to 99.9% of all airborne particles in a room by generating its own supply of highly unstable oxygen atoms (with an extra electron) known as free radicals or ozonides. This type of air purifier is capable of rapidly breaking down microorganisms in the environment thanks to its supercharging effect on oxygen molecules in the vicinity which are easily able to attach themselves onto various compounds present in the environment.

Negative Ion Air Purifier

Negative ion air purifiers are designed to produce, attract and collect thousands of negative ions in an enclosed room. Negative ions can be very beneficial for humans because they have the ability to reduce stress by removing positive charged ions which are present in the atmosphere around us. These positive charged particles can be found everywhere including our homes which lead to reduced energy levels due to their stimulating effect on cells within the body.

The negative ion generator is capable of increasing output if it detects that there is more humidity present in the environment during high heat seasons throughout the year. It will then increase its negative ion production rate so that this excess humidity does not cause mildew or mold growth inside your home or office space when it reaches places like your window frames, curtains or furniture.

Uses of HEPA Air Purifier

  1. HEPA type air purifiers are used to remove contaminants by simply passing the polluted indoor air over a simple filter. This will trap particles including dust, pollen, mold spores, pet dander and so on.
  2. Type of Hepa filters can also be used in combination with other cleaners such as Ultraviolet light or Ozone treatment to provide maximum cleanliness for your indoor environment.
  3. The primary purpose is to improve the quality of indoor air by removing contaminants that may affect people’s health in their daily lives.
  4. Secondarily they can also be used to reduce odors or eliminate smoke smells in a room where smoking has occurred in an unventilated area.
  5. To enhance performance most manufacturers recommend setting up an air purifier in your bedroom as this is where you spend a major proportion of your day.
  6. This will enhance the quality of air and also improve your breathing and restful sleep at night.
  7. Air purifiers with multi-stage filtration process can be very effective against airborne bacteria, viruses and other microorganisms that may cause disease or discomfort among occupants. It can also reduce secondhand smoke from tobacco smoke by removing many of the harmful cancer causing chemicals left behind after smoking has taken place such as formaldehyde, carbon monoxide and hydrogen cyanide.
  8. You should regularly replace filters on your HEPA type air cleaner to maintain peak performance of the appliance for indoor air cleaning purposes and avoid any decrease in air flow caused by clogged filters.
  9. Most air purifiers have a pre-filter to trap the larger particles in the air before they get into the more expensive HEPA type filter which is designed to remove much smaller particles from indoor air.
  10. In general it will need replacing when you notice a significant drop in airflow through your unit or its ability to clean your indoor environment has decreased significantly due to dust, pet hair and other pollutants becoming trapped in the filter mechanism of your appliance.
  11. A final point, make sure that any new replacement filters you buy for an air purifier meet the manufacturer’s specifications because some cheaper brands do not conform with these standards and could actually damage or reduce filtration effectiveness of your air purifier when in use.

Which Types of Air Purifiers Are Best For Different Room?

Living Room/Household Room – Since most people spend so much time in their living rooms and dwellings, it makes sense that they would need to use more than one type of air purifier. For example, an ionizer will remove odors that cannot be removed by mechanical filters or ozone generators. HEPAs, on the other hand, will remove harmful gasses and odors.


If you suffer from a lack of fresh air in your car, an ionizer may be a good choice since it will help to freshen the air. However, if you’re looking to remove harmful chemicals such as carbon monoxide or formaldehyde, then using an HEPAs purifier would be more ideal. It’s also best to use climate control whenever possible since it’s difficult for heaters and air conditioners to remove gases that escape into the atmosphere such as carbon dioxide and methane.

Room That Is Frequented By Non-Adults:

Since children are sensitive to certain types of pollutants and irritants, this room will likely require at least 2 or 3 types of air purifiers. A strong ozone generator and a HEPA filter would be required, along with an ionizer for removing odors.


Since the bedroom is where we spend most of our time when we’re not working or attending school, it’s important to set up your bedroom to remove as many pollutants as possible. A good combination for bedrooms would consist of electronic cleaners that have a low wattage, such as 20 watts or less, along with HEPAs that can remove gases. Air Filters cannot quickly remove gases from the air so they should only be used in conjunction with other types of purifiers. If you’re trying to control dust mites then you should consider using electronic cleaners in combination with HEPAs.

Dining Room – The dining room is another room that must be kept clean, especially since it’s where we eat our food. An ionizer would be the best choice if odors are a problem then you should use an additional type of purifier to remove gases. For example, an ozone generator could be used in conjunction with an air filter or HEPA purifier to remove harmful gases. This combination might also work well in bathrooms so they can help prevent mold growth when there’s no ventilation available.

So What About Humidifiers?

Humidifiers add humidity to the air. If you live in a dry climate or use heating systems during the winter months, you may notice very dry air around your home. Adding more water vapor to the air can help you feel more comfortable indoors. In fact, research suggests that low humidity levels might actually contribute to respiratory problems like colds and flu (1). Having moist skin is also nice because it reduces irritation from things like static electricity; if you don’t already have one, now’s a good time to start taking advantage of humidifiers for dry skin relief.

Humidifiers do not remove particles from the air like an air purifier does. If you plan to use both devices at once, be aware that contaminants in the air may become more concentrated instead of being removed. This is especially true if your two devices are next to each other or side-by-side, potentially allowing one device to vent its contaminants into the air before they’re filtered by the second device. The best way to prevent this problem is by positioning them away from each other so neither vents straight up toward the other unit. Some people also choose to use several smaller units rather than one large central unit for this very reason.

Use of a Humidifier

  • Sinus congestion
  • Snoring/
  • sleep apnea
  • Coughing/sore throat
  • Protection from the common cold
  • Prevention of dry skin/chapped lips
  • Prevention of nose bleeds
  • Preventing static shocks.
  • Prevention of dry cough
  • Preventing the building up of dust mites/mold growth
  • Prevention of nose bleeds
  • Decreasing the risk of flu/cold germs spreading.

A humidifier creates a mist of water vapor to add moisture to the air throughout your home. A properly operating system can help maintain comfort, health and well-being.

Sinus congestion from too little humidity will cause discomfort and possibly a decreased sense of smell and taste.

In conditions where humidity drops below 20%, a humidifier is especially important for your health. Humidifiers are useful in preventing dry nasal passages, throat, skin and lips. In addition, humidifiers may help to reduce snoring or sleep neap caused by congestion from too little humidity. The moist air may also soothe a dry, irritated cough. Dry indoor air can lead to more severe health problems such as nosebleeds and increased risk of flu/cold germs spreading.

Types Of Humidifier

Humidifiers are devices that are used to increase moisture in the air. Due to its function, it is an important device for homes or rooms with dry air. There are different types of humidifier available in the market today and below are some of them:

Ultrasonic Humidifiers:

This type of humidifier works by converting water into a fine mist that is then dispersed in the air. It produces cool mist that can be helpful to people who have cold symptoms during winter months. Because it operates silently, you will not hear any noise when this appliance is running which makes it perfect for bedrooms. This type of humidifier also does not leave white dust on furniture so you do not need to worry about cleaning after using it.

Impeller Humidifiers:

This type of humidifier is a bit cheaper compared to ultrasonic humidifiers. It operates by spinning a wheel that has small jet holes on the edge. As the wheel spins, it makes water inside the tank drain as well as spray out into the room as a cool mist or vapor. Keep in mind that not all impeller humidifiers are noiseless so this may be an issue for some people.

Evaporative Humidifiers:

This type of humidifier works by using a fan to blow air through a wet wick where water evaporates and moistens the air. This type of humidifier is typically less expensive than ultrasonic or impeller of devices but its only disadvantage is that it may produce mineral dusts in the air.

Steam Vaporizer Humidifiers:

This type of humidifier can be helpful to children because it does not use any filters or wick. It works by boiling water and converting it into steam which is then released into the room. This type of humidifier, however, can get very hot so always keep an eye on your child if he/she will be around when you are using this appliance. It is also advisable to install a safety valve to avoid accidental burns or scalds when this device is being used.

Evaporator Humidifiers:

This type of humidifier operates using electricity to boil water in its reservoir which produces vapor that moistens the air. This type of humidifier is typically very expensive and takes a long time to heat up. You can use this type of humidifier for a whole night or to moisten large areas such as your living room, hallway or any other space in the house.

Spray Mist Humidifiers:

As the name implies, this type of humidifier works by producing fine water droplets that are then dispersed into the air. If you have allergies, asthma or cold symptoms that can be easily aggravated by using an ultrasonic device, this water mist humidifier is a good alternative because it does not produce any white dust on furniture and also keeps the air clean. Keep in mind that this humidifier uses filters so them regularly will be required if you want to avoid problems such as mold from occurring.

Evaporative Cool Mist Humidifiers:

This type of humidifier works by using a fan to push air through a moist wick where water evaporates and moistens the air. This type of humidifier is typically less expensive than ultrasonic or impeller devices but its only disadvantage is that it may produce mineral dusts in the air which can be irritating for people who have asthma and other respiratory issues.

Whole House Humidifiers:

If you are planning to buy this device, it means that your goal is to increase humidity throughout the entire house. It can work wonders especially during winter months when heat is being used inside the home which tends to dry up the air making it very uncomfortable for everyone to use.

Can You Use An Air Purifier And Humidifier Together

If you have allergies or asthma, using an air purifier and humidifier together will likely improve your symptoms. Although they won’t remove the same types of contaminants from the air, you can avoid one device’s pollutants affecting the other by placing them a good distance away from each other. If you’re looking for relief from dry skin or static electricity, humidifiers can help with that as well!

Disadvantages of Using Air Purifier With Humidifier At the Same Time:

  1. Air Purifiers and Humidifiers both works for different purposes so if you use them together it may result in wastage of money as well as disappointment to you.
  2. If the purifier is strong enough then there is no need to use a humidifier, because it can cause an unbalanced humidity level in your home and office environment.
  3. Using a humidifier with purifier creates noise due to high speed fan and increases the chances of electric shock too.
  4. Also we normally find that we need to clean the filter from time to time, if we run both devices consecutively then this task will become hectic and less effective as well as costly for you.

Why is the humidifier in a room adversely affecting the PPM reading of my air purifier?

The humidifier will always increase the humidity and lower the PPM reading on your air purifier. This is because the humidifier itself increases the PPM of water vapor in the air, which triggers a false positive that there is too much humidity to cleanse.

Where is the best placement for a humidifier and an air purifier in one room?

Since a humidifier and an air purifier both aim to improve the air quality in a room, they should be placed in close proximity. This is because the purifying fan of the air purifier could actually blow some of the moisture from the humidifier out of the room. So it may be best not to put them right next to each other.

Plus, if you have a large room, you will need both devices to distribute water vapor and clean air so that there is uniform change throughout your living space.

Most experts say that placing a humidifier on one side of a square or rectangular-shaped room and an air purifier on another side will ensure uniform humidity distribution without interference from either device.