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You are here: Home / Home & Kitchens / Best Air Purifiers in 2021 Reviews – Buying Guide
Best Air Purifiers in 2021 Reviews – Buying Guide

Best Air Purifiers in 2021 Reviews – Buying Guide

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The main things to consider when purchasing an air purifier are the purifier’s range, its noise level, and ozone concerns. Some air purifiers produce ozone (either in low or higher amounts depending on its intended function) as a deodorizing method.

While effective, ozone can irritate the respiratory tract and causes breathing difficulties in some people. People with breathing disorders such as asthma or COPD should avoid purifiers that produce ozone and instead choose purifiers that use carbon filters to trap odors. Air purifiers and filters are perfect for indoor allergy sufferers.

Best Air Purifiers in 2021

Common household allergies include dust and mold, which most air purifiers are designed to handle. These purifiers also handle pet dander (and the resulting unpleasant odors), and cigarette smoke. Some also come with germ-killing features, such as UV light, for an overall healthier home.

# Preview Product Price
1 LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db Filtration System Cleaner Odor Eliminators, Remove 99.97% Dust Smoke Mold Pollen, Core 300, White LEVOIT Air Purifier for Home Allergies and Pets Hair Smokers in Bedroom, H13 True HEPA Filter, 24db... $99.99 View on Amazon
2 PARTU HEPA Air Purifier - Smoke Air Purifiers for Home with Fragrance Sponge - 100% Ozone Free, Lock Set, Eliminates Smoke, Dust, Pollen, Pet Dander, (Available for California) PARTU HEPA Air Purifier - Smoke Air Purifiers for Home with Fragrance Sponge - 100% Ozone Free, Lock... $49.99 View on Amazon
3 Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters Allergies, Pollen, Smoke, Dust Pet Dander, Mold Odors, Quiet 22 inch 4-in-1 Air Purifier for Home AC4825E Germ Guardian True HEPA Filter Air Purifier with UV Light Sanitizer, Eliminates Germs, Filters... $84.99 View on Amazon
4 Honeywell HPA300 True HEPA Air Purifier, Extra-Large Room, Black Honeywell HPA300 True HEPA Air Purifier, Extra-Large Room, Black $249.99 View on Amazon
5 LEVOIT Air Purifier for Home Large Room, H13 True HEPA Filter Cleaner with washable filter for Allergies and Pets, Smokers, Mold, Pollen, Dust, Quiet Odor Eliminators for Bedroom, Vital 100, White LEVOIT Air Purifier for Home Large Room, H13 True HEPA Filter Cleaner with washable filter for... $107.98 View on Amazon
6 LEVOIT Air Purifier for Home, H13 True HEPA Filter for Allergies and Pets, Dust, Mold, and Pollen, Smoke and Odor Eliminator, Cleaner for Bedroom with Optional Night Light, LV-H132, White LEVOIT Air Purifier for Home, H13 True HEPA Filter for Allergies and Pets, Dust, Mold, and Pollen,... $79.98 View on Amazon
7 LEVOIT HEPA Air Purifier for Home Bedroom, Small Compact Portable Room Air Purifier with Fragrance Sponge for Smokers, Smoke, Allergies, Pet Dander, Odors, Dust Remover, Office, Table top, Desk LEVOIT HEPA Air Purifier for Home Bedroom, Small Compact Portable Room Air Purifier with Fragrance... $39.99 View on Amazon
8 Winix 5500-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Washable AOC Carbon Filter Winix 5500-2 Air Purifier with True HEPA, PlasmaWave and Odor Reducing Washable AOC Carbon Filter $157.60 View on Amazon
9 LEVOIT Smart WiFi Air Purifier for Home, Alexa Enabled H13 True HEPA Filter for Allergies, Pets, Smokers, Smoke, Dust, Pollen, 24dB Quiet Air Cleaner for Bedroom with Display Off Design, Core 200S LEVOIT Smart WiFi Air Purifier for Home, Alexa Enabled H13 True HEPA Filter for Allergies, Pets,... $89.99 View on Amazon
10 HEPA Air Purifier for Bedroom,Compact Design,White,900S HEPA Air Purifier for Bedroom,Compact Design,White,900S $38.90 View on Amazon

Last update on 2021-04-19 / Affiliate links / Price / Images from Amazon Product Advertising API

Table of Contents

  • 10. Breathe Fresh Air HEPA Filter Ionic Ionizer Air Purifier
  • 9. AeraMax 300 Air Purifier
  • 8. Winix WAC5500 True HEPA Air Cleaner
  • 7. Honeywell True HEPA Allergen Remover
  • 6. GermGuardian AC5350B Elite 4-in-1 True HEPA Air Purifier System
  • 5. Honeywell HFD-120-Q QuietClean Tower Air Purifier
  • 4. Honeywell 50250-S True HEPA Air Purifier
  • 3. GermGuardian AC5250PT 3-in-1
  • 2. O-Ion B-1000 Permanent Filter Ionic Air Purifier Pro Ionizer
  • 1. Guardian Technologies AC5000E 3-in-1 True HEPA Air Purifier System
  • Conclusions

10. Breathe Fresh Air HEPA Filter Ionic Ionizer Air Purifier


Features

  • 4.5 stars on Amazon out of 116 reviews
  • Kills germs
  • Sleek hardwood body
  • Removes allergens and other impurities from the air
  • Deodorizes with ozone plates
  • Covers up to 3,500 sq ft

The Details

This air filter and purifier are available for $141.10 with Prime on Amazon. It comes with a UV sterilizer that kills pathogens while removing other irritating particles like dust and pollen from the air. The attractive hardwood exterior conceals its high-tech inner functions, including ozone deodorizing.

Ozone deodorizing is very effective but requires that the space being deodorized be uninhabited for one to three hours. The purifier’s range makes it ideal for business or home use. It even shows effectiveness with cigarette smoke odors, which are notoriously resistant. Some customers have even used it to deodorize cars.

Pros
  • UV sterilizer
  • Ionizer and Ozone deodorizing
  • Attractive design
Cons
  • Ozone function requires area to be unoccupied

Hardware, Dimensions, and Extras

  • Dimensions: 9 x 8 x 12.5 inches
  • Weight: 14 pounds
  • Washable HEPA filter (should be replaced every 12 months)
  • Two Ozone Plates (replaceable) – produces 360mg/hour
  • Grounded power cord
  • 30-day satisfaction guarantee
  Get it now on Amazon.com

9. AeraMax 300 Air Purifier


Features

  • 4.5 stars on Amazon out of 181 reviews
  • Removes germs, viruses, and allergens
  • Deodorizes with a carbon filter
  • Plasma technology with ionization
  • Covers 300-600 sq ft

The Details

This air filter and purifier are available for $193.99 with Prime on Amazon. It has a washable True HEPA air filter, a carbon filter, and filter change indicator lights. The filter has also received an antimicrobial treatment to prevent mold and mildew.

A special high-performance mode is available for allergy, cold, and flu seasons. Comes with an ionizer function for freshening the air that can be turned off depending on your preferences. It uses sensors to adjust automatically to air quality changes. Quiet and unobtrusive.

Pros
  • True HEPA filter and a carbon filter
  • Adjust automatically to air quality changes
  • Ionizer function
Cons
  • N/A

Hardware, Dimensions, and Extras

  • Dimensions: 8.1 x 16 x 25.1 inches
  • Weight: 12.5 pounds
  • Carbon filter (should be replaced every three months)
  • True HEPA filter (should be replaced every 12 months/after six washing)
  • Three-year limited warranty
  Get it now on Amazon.com

8. Winix WAC5500 True HEPA Air Cleaner


Features

  • 4.5 stars on Amazon out of 892 reviews
  • Removes germs, viruses, and allergens
  • Deodorizes with a carbon pre-filter
  • PlasmaWave Technology attacks pollutants without ozone
  • Covers 350 sq ft

The Details

This air filter and purifier are available for $189.99 with Prime on Amazon. It uses a carbon pre-filter to deodorize, Plasma ionizing technology to break down allergens and pollutants with minimal ozone release, and True HEPA filters.

You can choose between an auto mode that uses sensors to adjust the filter’s performance or choose from four fan speeds yourself. Comes with a remote and quiet fan. The plasma option can only be controlled with the remote. The filter also comes with an automatic dimming feature.

Pros
  • True HEPA filter and a carbon pre-filter
  • Has a remote
Cons
  • Ionizer function (low ozone)
  • Heavier than other similar filters

Hardware, Dimensions, and Extras

  • Dimensions: 16.3 x 8.5 x 21.7 inches
  • Weight: 20 pounds
  • Energy Star Qualified
  • Remote requires 2 AA batteries (included)
  • Carbon pre-filter (should be replaced every 3-6 months)
  • True HEPA filter (should be replaced every 12 months/after 6 washings)
  Get it now on Amazon.com

7. Honeywell True HEPA Allergen Remover


Features

  • 4.5 stars on Amazon out of 729 reviews
  • Cleans and filters the air of germs, allergens, and other impurities
  • Deodorizes with an activated carbon pre-filter
  • Covers 465 sq ft

The Details

This air filter and purifier are available for $208.95 with Prime on Amazon. Comes with fan and timer control options as well as a Turbo Clean setting. The mechanical process of the filter does not release ozone, making it ideal for those with allergies, breathing disorders, or ozone sensitivities. The LED lights are dimmable.

Customers note that the unit is loud when operating on its higher settings, but works well. The unit can fully circulate the air in a 21′ x 22′ room up to five times an hour. Another neat feature is a quick reference guide that can be pulled out of the top of the filter. Honeywell is a #1 Allergist recommended the brand and this filter received a good rating on Consumer Reports.

Pros
  • No ozone
  • True HEPA and carbon filter
  • Dimmable LEDs
Cons
  • Can be noisy on higher settings
  • Heavier than other similar filters

Hardware, Dimensions, and Extras

  • Dimensions: 22.1 x 13 x 24 inches
  • Weight: 21 pounds
  • Activated carbon pre-filter (should be replaced every 3-6 months)
  • True HEPA filter (should be replaced every 12 months/after 6 washings)
  • Five-year limited warranty
  Get it now on Amazon.com

6. GermGuardian AC5350B Elite 4-in-1 True HEPA Air Purifier System


Features

  • 4.5 stars on Amazon out of 165 reviews
  • Cleans and deodorizes the air
  • Kills germs, viruses, bacteria, and mold
  • Works best in medium to large rooms
  • Energy Star Qualified

The Details

This air filter and purifier are available for $164.93 with Prime on Amazon. It comes with a True HEPA filter and charcoal filter, plus UV-C light technology to kill germs, viruses, and other pathogens. Its petite design comes with a digital display panel with a filter change indicator.

You can control the fan speed (including an ultra-quiet sleep mode), select a timer, and toggle the UV-C technology. For households looking actually to destroy pathogens, this small, quiet filter is ideal.

Pros
  • True HEPA and carbon filter
  • UV light kills pathogens
  • Small and quiet
Cons
  • N/A

Hardware, Dimensions, and Extras

  • Dimensions: 9.1 x 6.7 x 27.6 inches
  • Weight: 11 pounds
  • True HEPA filters (replaced every 6-8 months)
  • Carbon prefilter (vacuum monthly)
  • Use only Germ Guardian Replacement filters and parts to avoid voiding the warranty
  • Five-year limited warranty
  Get it now on Amazon.com

5. Honeywell HFD-120-Q QuietClean Tower Air Purifier


Features

  • 4.5 stars on Amazon out of 1,082 reviews
  • Purifies the air of allergens and dust
  • Built-in ionizer
  • Energy Star Qualified
  • Permanent filters
  • Oscillates
  • Covers 170 sq ft
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The Details

This air filter and purifier are available for $136.99 with Prime on Amazon. Probably its most significant feature is that the filters do not need to be replaced. The permanent pre-filter and HEPAClean filter just need to be washed and dried periodically.

A light will alert users if a filter is clogged or needs cleaning. You can toggle oscillation and fan speed/cleaning level. The filter purifies the air of a medium-sized room up to five times an hour. The oscillation function gives it the benefits of a traditional fan while better distributing clean air through the area.

Pros
  • Permanent filters
  • Oscillation
  • Ionizer function
Cons
  • White plastic design

Hardware, Dimensions, and Extras

  • Dimensions: 28.7 x 11.2 x 10 inches
  • Weight: 15 pounds
  • Permanent pre-filter (should be cleaned every 2-4 weeks)
  • Permanent HEPAClean filter (should be cleaned as indicated by LED lights, approximately once a month)
  • Five-year limited warranty
  Get it now on Amazon.com

4. Honeywell 50250-S True HEPA Air Purifier


Features

  • Four stars on Amazon out of 2,587 reviews
  • Long-life filter scrubs the air of tiny particles
  • Activated carbon pre-filter
  • Covers 390 sq ft

The Details

This air filter and purifier are available for $149.99 with Prime on Amazon. It comes with a long-life True HEPA air filter that lasts 3-5 years. It can change the air of a medium-sized room up to twelve times an hour. Honeywell pushes the product’s quietness and efficiency–it intakes and discharges air 360 degrees.

An indicator light will let you know when the filter needs to be cleaned (usually by vacuuming) or changed. Reviews state that the purifier is powerful and efficient, but on the noisy side. You can control the fan speed, but you can’t set a timer.

Pros
  • Long-life True HEPA filter
  • 360-degree design
Cons
  • Somewhat noisy

Hardware, Dimensions, and Extras

  • Dimensions: 18 x 18 x 19.6 in
  • Weight: 21 pounds
  • Long-life True HEPA air filter (clean monthly, replace approximately every 3-5 years)
  • Activated carbon pre-filter (should be replaced approximately every three months)
  • Five-year limited warranty
  Get it now on Amazon.com

3. GermGuardian AC5250PT 3-in-1


Features

  • 4.5 stars on Amazon out of 515 reviews
  • Air purifier with an antimicrobial treatment specifically for household pets helps filter out dander and other allergens
  • UV light technology kills pathogens
  • Charcoal filter deodorizes the air
  • Covers 193 sq ft/ideal for medium to large rooms

The Details

This air filter and purifier are available for $137.99 with Prime on Amazon. It uses UV-C light to kill viruses, germs, and bacteria for a cleaner home.

The digital display has a filter change indicator, toggles the UV-C light function, and controls the five fan speeds. The Pet Pure treatment kills mold, mildew, and fungi. This is a petite but effective filter.

Pros
  • UV light kills pathogens
  • Small size
  • Pet Pure antimicrobial treatment
Cons
  • N/A

Hardware, Dimensions, and Extras

  • Dimensions: 6 x 9.5 x 27 inches
  • Weight: 10 pounds
  • True HEPA air filter (replace every 6-8 months)
  • Charcoal filter (replace every 6-8 months)
  • Using parts not approved by the manufacturer will void your warranty
  • Five-year limited warranty
  Get it now on Amazon.com

2. O-Ion B-1000 Permanent Filter Ionic Air Purifier Pro Ionizer


Features

  • 4 stars on Amazon out of 1,981 reviews
  • Ionizing power using ozone
  • Uses electrostatic to collect dust
  • Kills pathogens and breaks down odors with UV technology
  • Covers 500-700 sq ft but seems ideal for smaller spaces

The Details

This air filter and purifier are available for $39.95 with Prime on Amazon. It has a permanent dust collector rode that can be cleaned with a damp cloth and a washable charcoal filter. This filter uses ions rather than mechanical filters: it releases negative ions into the air that then attach to unwanted particles like germs and allergens and make them too heavy to remain airborne.

These weighted particles fall to the floor, where they can be vacuumed away. This filter may not be ideal for allergy sufferers since it does not trap allergens within the filter itself. It is a better option for people mainly looking for odor reduction and elimination.

Pros
  • Ionizing technology with ozone
  • Low price
  • No filters that need to be changed
Cons
  • Not ideal for allergy sufferers or people with sensitive lungs

Hardware, Dimensions, and Extras

  • Dimensions: 5.5 x 6.5 x 17 inches
  • Weight: 4 pounds
  • Ion and ozone-based air purification
  • UV bulbs last 10,000 hours and replacements can be purchased from the manufacturer for as little as $4.50
  • 30-day satisfaction guarantee
  • One-year factory warranty
  Get it now on Amazon.com

1. Guardian Technologies AC5000E 3-in-1 True HEPA Air Purifier System


Features

  • 4 stars on Amazon out of 1,075 reviews
  • Air filter removes dust and impurities from the air
  • Charcoal filter traps odors
  • UV-C light technology kills germs and other pathogens
  • Best for medium to large rooms

The Details

This air filter and purifier is available for $127.99 with Prime on Amazon. The filters trap odors and particles, and the UV-C light function kills airborne pathogens and helps break down odors molecules. Comes with a filter change indicator and three fan speeds.

Pros
  • UV light technology kills pathogens
  • Lightweight and unobtrusive
  • Air filter and carbon filter
Cons
  • N/A

Hardware, Dimensions, and Extras

  • Dimensions: 10 x 7 x 28 inches
  • Weight: 9.6 pounds
  • FILTER C 3-in-1 filter needs to be replaced every 6-8 months
  • Five-year limited warranty
  Get it now on Amazon.com

Conclusions

The air purifier that probably jumped out at you was the $40 unit coming in at #2 on this list. It’s an amazing little appliance for its price and would be great for anyone looking mainly for better smells and fewer airborne pathogens. However, for people with allergies, a purifier with a mechanical filter (such as the True HEPA filter used in most of the purifiers listed) is a superior choice.

So, if you want an air purifier with a mechanical filter, which is your best option? Well, note that only #8 on the list comes with a remote. Not all of these units come with dimming options, which is something to consider for a bedroom air purifier. The Honeywell 50250-S is the only purifier to make the list that has a long-life filter, while the Honeywell HFD-120-Q actually has permanent filters.

Before buying an air purifier, check out the price of the replacement filters–for instance, the Winix Plasmawave WAC5500 replacement filter costs $64.99. That’s a filter you’ll be buying about once a year for the life of the product. Meanwhile, the Honeywell HPA300 has a value pack option that costs notably less.

Whether you want a cleaner, fresher home (or business, as the #10 air purifier is ideal for) or a safe haven from allergies, a variety of air purifiers may work for you. The minimalist might not want the germ-fighting power of the UV light technology, but that same technology might come in handy for a family with young children. The air purifiers on this list have been shown to be worth the investment.

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Filed Under: Home & Kitchens Tagged With: Air Purifiers



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Comments

  1. Jase Davidson says

    March 11, 2017 at 8:15 pm

    Great list! Air purifiers should be a staple in your home. Thanks for sharing your information.

    Reply

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