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Best air purifier deals for January 2023

Everyone deserves to have clean, fresh-smelling air in their home. No one likes the stale, almost mildewy smell of old air, or allergens floating around. Allergies certainly don’t take a break, but air purifiers can help. Interest in air purifiers is especially high as concerns about the COVID-19 the pandemic refuse to quit. Greater demand has had a beneficial effect in that there are now more types and models of air purifiers than ever before. Some models from Dyson, Honeywell, Dreo, Winix, and others not only capture fine dust but also function as coolers and/or heaters and reduce odors. Air purifiers can also clear the air of pet dander, fur, mold spores, pollen, and airborne contaminants invisible to the naked eye, such as secondhand smoke. We’ve gathered the best air purifier deals going on right now. You can check out our top picks below!

Today’s best air purifier deals

Honeywell InSight HEPA air purifier — $170, was $290

Honeywell InSight HEPA air purifier

This  purifier is small enough to be used on a tabletop, but also big enough to sit on the floor. So, it’s excellent for any bedroom, office, or small living space. It can clean up to 500 square-feet, up to 4.8 times per hour, delivering more fragrant and fresh-smelling air. The HEPA R filter removes particles larger than 0.3 microns, including smoke, pollen, hair, dander, and odors. Touch controls on the top make it easy to make adjustments, plus there are four cleaning levels with an auto mode and an easy-glance air quality indicator.

Shark Air Purifier 4 — $200, was $350

Shark Air Purifier 4 in bedroom

Shark’s whole-space system covers up to 1,000 square feet, removing allergens, purifier the air, and generally delivering cleaner, fresher experiences. It tracks and automatically adjusts coverage based on indoor air quality, thanks to unique smart-sensing technology. Moreover, you can easily replace the filters, which is recommended every six to 12 months. Four fans work together to generate clean air without making too much noise. It comes with a remote control to change settings from a distance or your couch.

Levoit PlasmaPro 600S True HEPA air purifier — $300, was $350

Levoit PlasmaPro 600S True HEPA air purifier in house.

This freestanding True HEPA air purifier can refresh up to 635 square-feet of space up to five times per hour, or 1,588 square-feet of space two times per hour. It features four fan speeds, including low, medium, high, and turbo with activations for auto and sleep modes, as well. The three-stage H13 True HEPA filtration removes 99.97% of airborne particles that are 0.3 microns in size, and it helps neutralize household odors, especially if you have pets. Smart controls allow you to adjust settings and receive real-time notifications about air quality, filter usage, and beyond. It’s convenient, powerful, and covers a pretty sizable area.

LG PuriCare AeroTower Smart HEPA air purifier — $300, was $550

The LG PuriCare AeroTower sits in the center of a room and cools the entire space.

With its sleek design, LG’s fan and purifier can purify rooms of any size, large and small, offering coverage for up to 818 square feet. A built-in LED indicator tells you about air quality, changing from red to orange, yellow, and green. The HEPA filtration removes most fine dust and particles, including allergens. Plus, you can use the ThinQ app to take control and adjust settings easily and remotely.

Dyson Purifier Cool Autoreact TP7A air purifier — $380, was $550

Dyson TP7A autoreact air purifier at Walmart.

Dyson is a household name, and while you may recognize it for its vacuums and cleaning products, it’s also an excellent choice for air purification and refreshment. You get ultra-quiet operation, with a night mode that keeps the display dimmed, and a remote to control it all from afar. But most importantly, it offers whole-room purification for up to 800 square feet with HEPA filtration and an activated carbon filter to boot. It also has an oscillating fan with 0 to 350 degrees of movement, it’s your choice and you can adjust accordingly.

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

You have likely heard of HEPA high-efficiency particulate air filters. A majority of air purifiers have HEPA-standard filtering. Some vacuums feature HEPA air filtering as well. These mechanical air filters force air through a very fine mesh fabric to trap impurities that get mixed in the air. To qualify as 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, they can clear pollutants that are about 1,000 times smaller than what HEPA filters can. PECO filtering purifies and disinfects the air without you having to dispose of anything.

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 where you will use the device. You may spot some models with the AHAM Verified 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.

If you or family members have allergies or asthma, you can also look for Asthma and Allergy Foundation of America air purifiers with this certification are guaranteed to reduce allergens in the air in both carpeted and hard floor rooms. Examples of Asthma and Allergy Friendly certified air purifiers include designated Dyson Pure Hot + Cool models, LG PuriCare, 360, and RabbitAir Minus A2 and A3.

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 for what you’ll spend on replacement filters or buy an air purifier with washable filters. Some air purifiers are overly noisy, so check for statements of quiet operation or night modes.

There are air purifiers with specialized filters 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; press your desired air flow speed and it consistently moves air at that rate. Others have modes for automatic air filtering that detect impurities with air quality sensors and self-adjust to remove them from the air. Smart air purifiers allow you to track and control the quality of your air., typically with a smartphone app. 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.

Looking for more ways to upgrade your home’s cleanliness? 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.

Editors' Recommendations

Bruce Brown
Digital Trends Contributing Editor Bruce Brown is a member of the Smart Homes and Commerce teams. Bruce uses smart devices…
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