Digital Trends may earn a commission when you buy through links on our site.

These are the best cheap air purifier deals for September 2020

Healthy air is on everyone’s mind and air purifiers provide a simple solution to more breathable spaces. Even if a purifier doesn’t completely spare us, we can have more peace of mind knowing that we’ve taken steps to boost indoor air quality at home. Virus or not, you won’t regret investing in an air purifier because you can reap the benefits no matter the season. Some models from Dyson, Honeywell, Winix, and others not only capture fine dust but also function as a cooler and/or heater and reduce odor. Pet dander, fur, mold spores, pollen, and airborne contaminants invisible to the naked eye such as secondhand smoke can be the least of your worries. We’ve gathered the best air purifier deals you can find at major merchants so your wallet can get a breather too.

Today’s best air purifier deals

  • Germ Guardian True HEPA Filter Air Purifier for Home, Office, Bedrooms AC4825$90, was $150
  • Winix 5300-2 Air Purifier with HEPA, PlasmaWave & Odor Reducing Carbon Filter$150, was $200
  • Germ Guardian True HEPA Filter Air Purifier 4-in-1 AC5350$155, was $250
  • Winix 5500-2 Air Purifier — $160, was $250
  • Holmes Large Room 4-Speed True HEPA Air Purifier$173, was $380
  • Levoit Air Purifier — $180
  • Dyson TP01 Pure Cool Tower 800 Sq Ft HEPA Air Purifier and Fan$300, was $400
  • Dyson Pure Cool Me Personal Purifying Fan, BP01 HEPA Air Purifier & Fan$330, was $350
  • Dyson Pure Hot + Cool HP01 Air Purifier — $400 was $500

Germ Guardian True HEPA Filter Air Purifier for Home, Office, Bedrooms AC4825

$96 $150
Expires soon
Germ Guardian's AC4825 traps dust with HEPA filters, kills germs with UVC light, and rids odors with carbon filters for medium to large rooms up to 167 square feet.

Winix 5300-2 Air Purifier with HEPA, PlasmaWave & Odor Reducing Carbon Filter

$150 $200
Expires soon
Winix's 5300-2 air purifier enhances indoor air quality with HEPA filters to capture and PlasmaWave tech to breakdown 99.97% of particles. It also has active carbon filters to reduce odors.

Bissell 2609A Air220 Air Purifier

$195 $230
Expires soon
With a well-rounded array of features, the Bissell 2609A air purifier is a splendid option that accomodates up to 800 square feet and ensures the air is as pure as it could ever be.

Sharp IOT Plasmacluster Ion Air Purifier

$527 $600
Expires soon
Boasting Plasmacluster Ion technology coupled with a true HEPA filter, this Sharp air purifier is a widely verified air purifier for good reason. It's silent and best used anywhere in the home.

Black+Decker Tabletop 93 Sq. Ft. Air Purifier

$77 $100
Expires soon
For a simple yet effective tabletop air purifier, this Black+Decker option is a compact option with various settings that make this a piece of work that gets the job done as good as any other.

Winix 6300-2 400 Sq. Ft. Air Purifier

$176 $220
Expires soon
Jam-packed with eight carbon filters, patented PlasmaWave technology, and various other features, the Winix 6300-2 is an air purifier that can clean room atmospheres up to 400 square feet in size.

Honeywell QuietClean Tower Air Purifier HFD-120-Q

$172 $190
Expires soon
Honeywell's QuietClean Tower Air Purifier is equipped to cover up to 180 square feet with electronic filters that clear 95% to 99.9% of dust. It is also efficient with an Energy Star certification.

Fellowes AeraMax 90 200 Sq. Ft. Air Purifier

$180 $210
Expires soon
With AeraSmart air quality sensors and seasonal settings, the Fellowes Aeramax air purifier is a great option with minimal noise as it operates and cleans the air.

Holmes True HEPA Allergen Remover Mini Tower Air Purifier for Small Spaces

$55 $70
Expires soon
Holmes' space-saving air purifier delivers fresher and cleaner air for rooms up to 80 square feet. It can trap smoke, dust, pollen, mold spores, and pet dander with its True HEPA filtration

Germ Guardian Air Purifier, High CADR True HEPA Filter for Home AC5900W

$200 $300
Expires soon
This 3-in-1 air purifier from Germ Guardian quietly eliminates airborne pollutants and odors with HEPA filters, UVC light, and carbon filters in rooms up to 338 square feet.

Holmes Large Room 4-Speed True HEPA Air Purifier with Quiet Operation

$173 $180
Expires soon
This medium air purifier is perfect for rooms up to 349 square feet. It has True HEPA filtration for capturing dust as little as two microns, four speeds, and LED indicators for filter replacement.

Lasko 56 Sq. Ft. Air Purifier

$40 $50
Expires soon
If you only want a simple air purifier that doesn't need to cover that much room, this Lasko option covers 56 square feet and has a three-stage HEPA filter system to keep the air clean.

Germ Guardian Air Purifier Electrostatic True HEPA Filter

$115 $150
Expires soon
This Germ Guardian air purifier not only has HEPA filters to capture fine dust but also comes equipped with safe UV light tech to kill airborne bacteria

Dyson TP01 Pure Cool Tower 800 Sq Ft HEPA Air Purifier and Fan

$300 $400
Expires soon
The Dyson Pure And Cool air purifying tower fan. Perfect size for most areas at home or office up to 800-square feet.

Bissell 2780A MyAir 100 Sq. Ft. Air Purifier

$70 $90
Expires soon
While it may be small, the Bissell 2780A air purifier is a competent little machine that can provide easily breathable air, cleaned through its triple filter layer.

Germ Guardian AC4100 Desk Air Purifier

$70 $90
Expires soon
If you aren't particular with air purifier coverage, the Germ Guardian AC4100 desk air purifier can fit on a desk and keep the air clean of smoke, pollen, and dust with its HEPA filter.

HoMedics Tower 188 Sq. Ft. Air Purifier

$200 $250
Expires soon
The HoMedics Tower air purifier has a simple look that makes it simple to use in any household. It has three fan speeds, a HEPA filter, and a 12-hour timer for easy hands-free use.

Germ Guardian True HEPA Filter Air Purifier 4-in-1 AC5350

$150 $250
Expires soon
Germ Guardians 4-in-1 air purifier reduces allergens, kills harmful bacteria and viruses, as well as remove odors in rooms up 180 square feet. It's easy to use and makes for a quiet operation.

Medify Air MA-40 v2.0 840 Sq. Ft. Air Purifier

$270 $349
Expires soon
The Medify Air MA-40 air purifier is a medium-sized machine that is averagely priced but packed with some features that would make some other options on the market look cheap.

Bissell, 2768A Air320 Air Purifier for Home, Allergies and pet Dander

$279 $330
Expires soon
Bissell's Air 320 uses a three-stage filtration system to effectively clean air and reduce odors. It has an automated CirQulate system for monitoring air quality in rooms up to 1,000 square feet.

hOmeLabs 58 Sq. Ft. Air Purifier

$90 $100
Expires soon
This hOmeLabs air purifier may be small, but it's decked out with triple-filter cleaning that can cleanse small spaces and rooms without a hitch.

Honeywell AirGenius 5 250 Sq. Ft. Air Purifier

$226 $240
Expires soon
With five levels of air purifying and odor eliminating, the Honeywell AirGenius 5 air purifier can ensure clean air for rooms of up to 250 square feet, making it a decent option for medium rooms.

Germ Guardian AC4200 105 Sq. Ft. Air Purifier

$72 $80
Expires soon
Capable of fitting on a surface as small as a stool, the Germ Guardian AC4200 air purifier is a powerful little machine that keeps the air consistently clean and healthy to breathe.

Dyson Pure Hot and Cool Link Air Purifier, Heater and Fan - Silver/White

Expires soon
Keep your home’s airflow clean throughout the year. Its Jet Focus technology offers options for personal or diffused heating and cooling, and the 360-degree HEPA filter removed 99.97% of allergens.

HEPA vs. PECO filters: What’s the difference?

Most of us are probably familiar with HEPA or high-efficiency particulate air filters. A majority of air purifiers have it and some vacuums as well. These mechanical air filters force air through a very fine mesh fabric to trap impurities that get mixed in the air. To be considered a HEPA filter, it must remove up to 99.97% of particles as little as 0.3 microns from the air. The great thing about HEPA filters is they become more efficient as the air gets dirtier whereas electrostatically charged air filters require more frequent replacements.

PECO or photoelectrochemical oxidation technology, on the other hand, is a kind of filter that does not give allergens, bacteria, or viruses any chance to thrive. Instead of catching these toxins, PECO utilizes light to spark a nano-coated filter and achieve a catalytic oxidation reaction. Basically, organic substances are broken down into tiny harmless molecules. Since PECO filters don’t collect particles, it can clear pollutants that are about 1,000 times smaller than what HEPA filters can. It purifies and disinfects the air without you having to dispose of anything and risk exposure to that handful of dirt.

How to choose an air purifier

There are many factors to consider when choosing an air purifier. Apart from the brand, start with the size of the room in which you will use the device. You may spot some models with the AHAM Verifide seal. That sale means the purifier has been independently tested and passed the quality imposed by the Association of Home Appliance Manufacturers. You can also compare the CADR (clean air delivery rate) which refers to the volume of clean air an air purifier can produce at the highest speed setting in relation to the room’s cubic footage. The higher the CADR, the faster and more efficient the air purifier is.

Since air purifiers typically run all day, factor in the cost of energy. Look for the Energy Star logo, which guarantees that the air purifier is at least 40% more energy-efficient than typical models. You’ll need to account how much you’re willing to spend on replacement filters or opt to get one with washable filters. Some air purifiers are overly noisy, so check for statements of quiet operation or has night modes.

There are air purifiers with specialized filters that are meant to take on particular pollutants. HEPA filters are common for handling allergens, pet dander, hair, dust mites, and pollen while units with active carbon filters are recommended for removing odors. There are also models that are designed for smoke or for people with multiple chemical sensitivities.

While most air purifiers promise ease of use, some units up the ante with built-in smart features. Ordinary air purifiers operate in one or two ways. Those with continuous air filtering work pretty much like a room fan wherein you’d press your desired speed and it consistently moves air at that rate. Others have modes for automatic air filtering that detect impurities with air quality sensors and adjusts itself accordingly to remove them from the air. Smart air purifiers allow you to track and control the quality of your air. You can also learn exactly what kind of microorganisms have infiltrated your home or office. Some smart air purifiers work in conjunction with smart home systems and devices, such as those that are compatible with Amazon Alexa.

The best air purifier is simply one that best suits your needs. Supplementary features such as noise, portability, touch programs with LED indicators, timer, remote, or smart functions are secondary to room size and the appropriate filtration system. Air purifiers can improve indoor air quality by eliminating allergens that are floating in the air. Heavier particles that fall to the ground quicker may or may not be captured in time.

Looking for more ways to upgrade your clean? Check out what we have on robot vacuums for your dust-ridden floors, steam cleaners, smart home hubs, and more on our curated deals page.

We strive to help our readers find the best deals on quality products and services, and we choose what we cover carefully and independently. The prices, details, and availability of the products and deals in this post may be subject to change at anytime. Be sure to check that they are still in effect before making a purchase.

Digital Trends may earn commission on products purchased through our links, which supports the work we do for our readers.

Editors' Recommendations