The 9 Best Air Purifiers to Buy in 2019

Shop for the best air purifiers to improve the air quality in your home

Our editors independently research, test, and recommend the best products; you can learn more about our review process here. We may receive commissions on purchases made from our chosen links.

Research has shown indoor air quality is often significantly worse than that outside, which is why it's no surprise that air purifiers are such a popular purchase among homeowners. These devices work to remove microscopic particles from the air, saving potentially harmful molecules like dust, mold, smoke and more from entering your lungs.

If you're looking for an air purifier to help improve the air quality in your home, the following are some of the best options available today, all of which will help you breathe a little easier.

  • 01 of 09

    Best Overall: Honeywell HPA 300 True HEPA Allergen Remover

    Honeywell True HEPA Allergen Remover, 465 sq. Ft, HPA300
    Courtesy of Amazon.com.
    Excellent

    One of the most efficient, highly-rated air purifiers available right now is the Honeywell True HEPA Allergen Remover. This device helps remove more than 99.97% of airborne particles from large rooms, effectively improving indoor air quality.

    This top-rated air purifier from Honeywell is effective on particles as small as .3 microns, and it will capture things like pollen, dust, mold, pet dander, smoke, and germs. It's effective in rooms up to 465 square feet, and it can circulate all the air in a given area up to five times an hour. Not to mention, reviewers love this HEPA air purifier, which they say comes at a great price and helps reduce allergies and sickness among their family.

  • 02 of 09

    Runner-Up, Best Overall: Coway AP-1512HH Mighty Air Purifier

    Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode
    Courtesy of Amazon.com.
    Excellent

    Another incredibly efficient, effective air purifier is the Coway AP-1512HH Mighty Air Purifier. In addition to removing contaminants from the air, this machine has several additional features that make it a worthwhile purchase.

    Using a four-stage filtration system, this Coway purifier removes 99.9% of contaminants from the air, as well as many odors. It can be used in rooms up to 361 square feet, and it features a pollution sensor that provides real-time updates on your air quality. Additionally, this air purifier comes with an eco-friendly mode, where it automatically shuts off once no pollution is detected.

    Reviewers say the Coway Mighty Air Purifier is durable and effective, doing an especially great job eliminating odors from the air.

  • 03 of 09

    Best Budget: GermGuardian AC4825

    GermGuardian AC4825 3-in-1 Air Cleaning System with True HEPA Filter, UV-C Sanitizer, Allergen and Odor Reduction, 22-Inch Air Purifier
    Courtesy of Amazon.com.

    High-end air purifiers can cost up to several hundred dollars, but you don't need to break the bank to get a quality product. One great budget option is the GermGuardian AC4825 22” 3-in-1 Full Room Air Purifier, which delivers the same air-purifying power for a fraction of the price.

    This model uses a HEPA filter to capture 99.9% of allergens, including pet dander, mold spores, and pollen. It also uses a charcoal filter to reduce common odors from pets, smoking, cooking and more, and it boasts optional UV-C light technology that can kill airborne bacteria and germs. Not to mention, there are more than 5,500 5-star reviews for the air purifier, many of which call the product life changing.

  • 04 of 09

    Best for Allergies: LG Electronics PuriCare 3-Stage Filter Air Purifier

    If someone in your family suffers from allergies, you need a product such as the LG Electronics PuriCare 3-Stage Filter Air Purifier. This product has a sleek, modern design, and it's incredibly efficient at removing small particles from the air, helping to reduce allergy symptoms.

    This air purifier uses a three-stage filter system to capture 99.9% of allergens as small as .3 microns. It will effectively cleanse the air of particles such as dust, pet dander, mold, and pollen—all of which can cause your allergies to act up. Additionally, it includes an LED light system that visually indicates air pollution levels, as well as a digital display for real-time measurements of indoor particulates. Reviewers say this air purifier makes a noticeable difference in their homes, helping to relieve allergy symptoms while operating silently.

    Continue to 5 of 9 below.
  • 05 of 09

    Best for Mold: GermGuardian AC5000 28” 3-in-1 Large Room Air Purifier

    While microscopic, mold particles can be harmful to your health if you breathe them in over a prolonged period of time. If you're concerned about mold in your home, you should invest in an air purifier such as this model from GermGuardian.

    This product uses a HEPA filter to capture 99.9% of dust and allergens as small as .3 microns, and it also uses UV-C light technology to reduce airborne bacteria, germs, and mold spores. It's effective in rooms up to 180 square feet, as it can circulate the air up to four times per hour.

    According to reviewers, the GermGuardian Large Room Air Purifier works great, noticeably clearing dust and other particles out of the air. However, several note this product is louder than other “silent” models.

  • 06 of 09

    Best for Pets: LEVOIT LV-H132 Air Purifier with True HEPA Filter

    If someone in your home has allergies, it may irritate them to have pet dander floating around in the air. A great product to capture these and other irritating particles is the LEVOIT LV-H132 Air Purifier.

    This model has a three-stage filtration system, including a true HEPA filter, that removes 99.9% of dust, pollen, smoke, mold spores, and pet danders. It can filter out particles as small as .3 microns, and it can be used in rooms as big as 85 square feet. There are more than 1,500 5-star reviews for the LEVOIT Air Purifier, and many buyers say it’s amazing at reducing airborne irritants, as well as pet dander and odors.

  • 07 of 09

    Best for Smoke: Pure Enrichment PureZone 3-in-1 True HEPA Air Purifier

    If you live in an area where there are frequently wildfires or have someone in your home that smokes, you know how permeating the odor can be. However, you can combat the smell of smoke with a product like the Pure Enrichment PureZone 3-in-1 True HEPA Air Purifier.

    This air purifier has a true HEPA filter that removes 99.9% of fine particles from the air, including pollen, pet dander, mold spores, and smoke. Further, it uses UV-C light to destroy microorganisms like viruses, bacteria, and fungi. It can be used in areas up to 200 square feet, and it boasts a whisper-quiet operation that you won't even notice.

    Many reviewers rave about this air purifier for the purpose of combating wildfire and other smoke. Many note it's incredibly effective at removing the odor from the air, but you may have to change the filter more frequently than recommended for best results.

  • 08 of 09

    Best for Bedrooms: Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier

    Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier

    Courtesy of Amazon

    If you're going to put an air purifier in your bedroom, you probably want it to be quiet enough that it won't disturb you while you sleep. If this is the case, you should definitely look into the Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier, which is virtually silent during operation.

    This air purifier has a four-stage purification and deodorization system that includes HEPA filtration. It can be used in a room up to a whopping 550 square feet, and it traps particles as small as .3 microns with a 99.9% efficiency. The Rabbit Air purifier is great for reducing buildup of common allergens such as dust mites, mold, pollen and pet dander, as well as bacteria and viruses, making it a solid investment for any bedroom.

    Reviewers say this unit looks sleek and modern, and it delivers “unbelievable” results, freshening up rooms and removing unpleasant odors, to boot.

    Continue to 9 of 9 below.
  • 09 of 09

    Best Design: Dyson Pure Cool Purifying Tower Fan, TP04 Air Purifier

    Dyson Pure Cool Purifying Tower Fan, TP04 Air Purifier

    Courtesy of Home Depot

    If you aren’t afraid to spend a little extra on a high-end product, you can't beat the design and performance of the Dyson Pure Cool Purifying Tower Fan. This highly-rated product has impressive dual functionality, working as both an air purifier and a fan in rooms up to 400 square feet.

    This product from Dyson uses a HEPA filter to capture 99% of microscopic particles, as small as .3 microns, but it does more than that. It also features a real-time display that shows you air quality levels, and it has a powerful fan that includes both forward and backward air flow modes and can oscillate 350 degrees. Additionally, this air purifier includes smart technology, so it links up to the Dyson app and can be controlled via Amazon Alexa.

    Reviewers give this product top marks across the board, writing that it's easy to use and control, and it works incredibly efficiently, even in larger rooms.

Products Tested by

How We Tested

We bought two top-rated air purifiers and our reviewers tested them for 707 hours. We asked our testers to consider the most important features when using these air purifiers, from their filter type to their footprint. We've outlined what matters most here so that you, too, know what to look for when shopping.

What to Look for in an Air Purifier

Size A larger room requires a higher-capacity air purifier. This is measured by clean air delivery rate, or CADR, which indicates how many particles are filtered and how fast. For the most effective air purifier, choose one that has a CADR rating that’s at least two-thirds the size of the room. (A 100-square-foot room would have a CADR rating of at least 67.)

Efficiency Air purifiers clean a room’s air at different intervals over the course of one hour. This is called air change per hour, or ACH rate (which varies from 2-6). An ACH rate of 2 means the air will be cleaned every 30 minutes, an ACH rate of 4 means the air will be cleaned every 15 minutes, and an ACH rate of 6 means the air will be cleaned every 10 minutes.

Filter type There are three main types of filters: HEPA filters, charcoal or active carbon filters, and washable filters. HEPA filters are most effective at reducing common allergens (pet dander, pollen, and dust), but charcoal or active carbon filters remove irritants like smoke or cooking smells more effectively. Washable filters are more cost efficient and environmentally friendly since the entire filter does not need to be replaced.

Test Results: Honeywell True HEPA Allergen Remover HPA 300 (Best Overall)

Excellent

What We Like

  • Clear instructions and setup

  • Improved air quality

  • Great overall value

What We Don't Like

  • Could be a bit smaller

  • No remote

Honeywell True HEPA Allergen Remover HPA 300
Honeywell Allergen Remover HPA 300
Honeywell Air Purifier
Honeywell True HEPA Allergen Remover
Honeywell True HEPA Allergen Remover HPA 300

Using this air purifier, our testers reported “significant” improvements in air quality. “We've stopped sneezing and the air is so much fresher,” one reviewer noted. They also thought it was a total steal for the price: “It's a great overall value,” said one tester. “Other purifiers with similar features are far more expensive.” However, our reviewers wished the device came with a remote and also said that it “would have been perfect if it was a bit smaller.”

Test Results: Coway AP-1512HH Mighty Air Purifier (Runner-Up, Best Overall)

Excellent

What We Like

  • Easy to use

  • Attractive design

  • Effective

What We Don't Like

  • Can be loud

  • Sensitive on default settings

This air purifier was a hit with one of our testers because of its stylish design: “It looks sleek and won't be an eyesore in your home,” she noted. “It looks like Apple made an air purifier.” Moreover, according to one reviewer, it was easy to use and effective: “This air purifier definitely does a good job,” she said. “The filter is already catching cat hair and the purifier turns on at the right times. We had someone smoke in the same room and the light indicator immediately turned red and the fan turned on.” In terms of negatives, one tester reported that it was loud when it detected contaminants and also that it was sensitive on its default settings: “It’ll just start blowing air without me changing anything in the room,” she said. "I appreciate that it's cleaning the air, but I often wonder what impurities it's detecting."