4 Best USB Air Purifier Reviews

We live in a world where the air we breathe is beyond polluted. Every day, people are exposed to allergens and pollutants that can cause many health problems. One way you can improve your quality of life is by using an air purifier. This article will discuss what you need to know about the best USB Air Purifiers on the market today so you can make an informed decision about which one might be right for your needs!

4 Best USB Air Purifier Review

  1. Pure Enrichment PureZone Mini (Most Popular Best USB Air Purifier)
  2. ITSHINY USB Plugged Air Purifier
  3. Munchkin Portable Air Purifier
  4. Calody Air Purifier

Pure Enrichment PureZone

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The Pure Enrichment PureZone Mini is the affordable version of the famous original PureZone, while most brands pause during the COVID-19 pandemic. The PureZone Mini received many reviews on different online shopping sites, so read the in-depth review of PureZone Mini below.

Pure Enrichment PureZone Mini Filters

The Pure Enrichment PureZone comes with 2 stage filtration system.

  • True HEPA Filter
  • Activated Carbon Filter

True HEPA Filter: The Pure Enrichment PureZone Mini has a True HEPA filter that can clean the 99.97% of air pollutants and remove the dust, pollen, pet dander, and as small as 0.3-micron size particles.

Activated Carbon Filters: The activated carbon filter can clean the VOCs, paints odors, bed smells, smog, and harmful gases.

Pure Enrichment PureZone Mini Coverage:

Pure Enrichment PureZone Mini is only intended for personal use, but the company confirmed it could be used in any room up to 54 square feet in size. I recommend you use it in very small spaces. PureZone Mini has a CADR of about 5-10 CFM in general.

Pure Enrichment PureZone Mini Sound:

One advantage of personal air purifiers is that they are extremely quiet. If you run it at low speed, and sometimes even high speed, you won’t notice its sound level. I measure the PureZone Mini’s noise level to be 15 to 30 decibels (DB), depending on its current fan power.

It’s perfect if you need to use an air purifier in an office, as it won’t distract your colleagues.

Pure Enrichment PureZone Mini Power Consumption:

Power consumption is an important criterion to evaluate how much energy this purifier will use. A single charge of the PureZone Mini can last up to 10 hours, and it has a power of 8 watts. Keep in mind that the PureZone Mini uses a rechargeable lithium-ion battery, so it will eventually die.

In spite of this, its energy consumption is extremely low, so you shouldn’t worry about running this air purifier.

ITSHINY USB Plugged Air Purifier

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The ITSHINY USB Plugged Air Purifier is another Best USB Air Purifier on the market today. The ITSHINY air purifier features a range of automatic options, including a ‘night’ mode for peaceful sleep and an ‘auto’ mode that uses sensors to monitor air quality and adjusts fan speeds accordingly. It also comes with a handy remote control for those times when you can’t reach the purifier.


This ITSHINY air purifier comes with a pre-filter and a high-efficiency particulate air (HEPA) filter, which captures 99.97% of allergens, dust, and pet dander from the air. The filters are easy to clean and can be reused.


The ITSHINY comes with several different sound options, which will allow you to select a fan speed that is as quiet as possible. In addition, it has a timer function that lets you set the ITSHINY air purifier to run for one, three or six hours before automatically shutting off.

Coverage: ITSHINY air purifier is able to purify a room up to 226 square feet in size.

Sound: ITSHINY air purifier is one of the quietest on this list, with a noise level of only 30dB.

Munchkin Portable Air Purifier

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This device is a product of the mind of a Harvard-trained doctor who realized how much polluted air was destroying his son’s health. Dr. William Gao invented the Munchkin portable air purifier to automatically clean pollutants from your immediate environment with no effort required. It has been tested in various laboratories and certified as effective against allergens, smoke, bacteria, dust mites and more by Environmental Protection Agency (EPA) Certified Labs.

Munchkin Portable Air Purifier Features & Filters

The product works automatically once turned on and it also detects harmful airborne levels around the user to turn itself up with a quiet noise even if you sleep or can’t see what’s going on with it. The device contains filters that need replacement every 3-6 months, depending on use.

These filters are easily replaced by opening the front cover and popping them out. The filter needs to be inserted into a designated space within the purifier and should be oriented with the arrow pointing down. The cover then snaps back into place and you are good to go!

The Munchkin Portable Air Purifier is powered by an AC adapter which is included in the purchase price. It can also run on batteries although it is not recommended to do so for more than 8 hours as this may affect the lifespan of your purifier. When using batteries, the device will show a red light at the bottom.

This product has many positive reviews online from verified purchasers who appreciate how easy it is to use, even for children. The purifier also comes with a full one-year warranty from the manufacturer.

So if you are looking at getting an air purifier but don’t want to spend hundreds or thousands of dollars on them, then this is a great option for you! It is compact in size and requires very little effort to maintain it.

CALODY Portable Air Purifier

Calody air purifier is the same size as water bottles, with dimensions of 2.7 x 2.7 x 6.7 inches. Purify your personal spaces, such as your car, bedroom, and office. Its unique AIR Technology provides a strong airflow that can cover up to 100 ft2/10m2 and cleans the air in 10 minutes.

As you know, these air purifiers cover very small areas, so why recommend you use these air purifiers in just cars. The Calody just consumes 2.5 to 4 watts of energy. And if you use this air purifier at a low fan speed, it will produce just 12 decibels, but at the highest fan speed setting, it will produce 30 decibels sound. That’s why this air purifier is a bit noisy.

Filters of Calody Air Purifier

Calody air purifier comes with a three-stage filtration system, including with initial grade filter screen, an Activated Carbon filter screen, and HEPA coating filter.

The 3-Plies Filter is durable and reliable. This can last up to 4-6 months 500 hours and has enhanced abrasion resistance. Safety is our top priority; the product is certified by EPA, CARB, FCC, and UL.

Initial Grade Filter Screen:

This is a kind of pre-filter that captures the larger floating particles from the indoor air.

Activated Carbon Filter: In this small-size air purifier, you see the carbon-coated Filter that is the cheap quality carbon filter.

HEPA Filter: The HEPA filter of the Cody air purifier capture the dust particles, pollen, allergens, and as small as 0.3 microns, dust particles.

UV Light: The UV light is an extra air cleaning stage of this air purifier that actually destroys the mold DNA markup and bacteria.


As you read all the best usb air purifier reviews, hopefully this post help you to choose the right one, but if you are still confuse to understand which is best then you can go with editor recommendation, based on the filters the Pure Enrichment PureZone is one of the best usb air purifier.