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Best air purifier 2024: tested for cleaner, healthier air at home

Everybody deserves to breathe clean air. With one of the best air purifiers, you can.

A hand switching on an air purifier.
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Best air purifier 2024: Jump Menu

Air purifier in cozy white bed room for filter and cleaning removing dust

(Image credit: Jomkwan via Getty Images)

The list in brief ↴
1. Best overall: Shark NeverChange Air Purifier MAX
2. Best multi-function: Dyson Purifier Humidify & Cool Formaldehyde
3. Best detection: Molekule Air Pro
4. Best value: Dreo Macro Pro
5. Best smart: Mila Air Purifier
6. Best for pet owners: Samsung Bespoke Cube
7. Best budget: Levoit Core 300
8. Best antibacterial: Blueair HealthProtect
9. Best quiet: Morento Air Purifier
10. How we test
11. How to choose
12. Meet the team
13. FAQs

The best air purifiers are designed to cleanse the air in our homes. They can capture and remove harmful particles in the air, such as allergens, smoke, dust, and pet dander, from our living spaces, creating a much cleaner, healthier environment.

Air purifiers can be a genuine life-changer for anybody who has pets, suffers from allergies, or lives in a busy urban area. We found that air purifiers do help with allergies, especially those with HEPA filters, and they can make a huge difference to your quality of life at home.

Smaller air purifiers are ideal for bedrooms and kids' rooms, while the bigger machines are equipped to handle much more open spaces - and, occasionally, entire homes. There are anti-odor models that can replace bad smells with fresh ones, and antibacterial purifiers that can destroy the germs that they capture.

As H&G's home tech editor, and both an asthma and allergy sufferer, I know what to look for in an air purifier. For many, they're essential appliances to have, so we've tested, reviewed and rounded up the 9 best air purifiers you can buy today. We've ranked these air purifiers based on coverage, filtration, design, and the all-important price. 

The quick list

We'll get into the specifics in a minute. For now, these are the best air purifiers at a glance. 

 The best air purifiers 2024

You can trust Homes & Gardens. Our expert reviewers spend hours testing and comparing the latest products, helping you choose the best for you. Find out more about how we test.

The best air purifier

Shark NeverChange Air Purifier against a white background.

(Image credit: Amazon)
Best air purifier overall

Specifications

Coverage: Up to 1,400 sq. ft.
Filter: HEPA & Debris Defence pre-filters
Dimensions: 13.2L x 13.2W x 22.5H inches
Weight: 12.27093 lbs

Reasons to buy

+
Large coverage
+
Air quality detection
+
Long-lasting, washable filters
+
Anti-odor tech
+
Dimmable lights

Reasons to avoid

-
Quite big
-
Plastic design might not appeal to everybody

Outside of its excellent performance on tests, the Shark NeverChange Air Purifier MAX boasts something new in the world of air purifiers. It has pre-filters, that Shark refers to as Debris Defence filters, that are wipeable and washable, protecting the HEPA filter within. Because of this, the NeverChange MAX avoids those recurring filter replacement costs that most air purifiers demand.

Not only is the NeverChange MAX the best air purifier overall, it's also the best for large spaces. At 1,400 square feet, it has the biggest coverage of any air purifier we've tested and we found that it covers large spaces exceptionally well. After a long cooking session, the air purifier had cleaned an entire upstairs' air quality from 33% to 100% in under 30 minutes.

The air purifier's front display shows your room's air quality as a percentage. This is thanks to Shark's Clean Sense IQ detection tech, which also detects the number of PM1, PM2.5, and PM10-sized particles in the air. This data might not be as detailed as the Molekule Air Pro's, but it's enough to see how at-home activities like dusting, cooking, or opening the windows affect your air quality. 

For any product to be the best, it has to be accessible as well as offering helpful features. The NeverChange MAX currently retails for just over $300, which is hundreds of dollars cheaper than some of the other premium air purifiers in this list (like the Dyson Purifier and the Molekule Air Pro). Its plastic aesthetic might not be attractive for everybody, but this is the kind of air purifier that'll genuinely make a big difference at home while being affordable in both initial and recurring costs.

Read our full verdict in our Shark NeverChange Air Purifier MAX review.

Best multi-function air purifier

Best multi-function air purifier

Specifications

Coverage: 800 sq. ft.
Filter: HEPA
Dimensions: 36.33 x 12.29 x 11.02"
Weight: 18 lbs

Reasons to buy

+
Three functions in one
+
Easy remote controls
+
Slick appearance

Reasons to avoid

-
Expensive
-
No heating option

An air purifier is what I like to call a home comfort appliance. It might not be necessary, but it's nice to have. Cooling fans and humidifiers fall under the same category. 

Purchasing each of your home comforts individually can cost you hundreds, if not thousands, of dollars. With the Dyson Purifier Humidify + Cool Formaldehyde fan, you get three functions in one machine, for $1000. Not too bad, when you think about it. 

Since this fan is remotely operated, you can use it from anywhere in the house. Once you've downloaded the app and filled the humidity reservoir, you won't need to touch it again. 

You don't need to understand environmental science to use this fan. The in-app air quality reports are written in plain English and translated into simple graphs for more visual learners. 

The Dyson impressed on test, particularly as a humidifier. This machine cleans itself, using UV light to kill any bacteria in the reservoir. 

The only real downside is the size. Three feet tall and one foot wide, the Dyson is on the larger side. You can't hide it, and you might struggle to store it in smaller spaces.

You can find more detail in our Dyson Purifier Humidify + Cool Formaldehyde review

Best air purifier for air quality detection

Best air purifier for air quality detection

Specifications

Coverage: Up to 1,000 sq.ft.
Filter: PECO
Dimensions: 23.1 x 10.9"
Weight: 22.9lb

Reasons to buy

+
Traps and destroys pollutants
+
Large coverage
+
Quiet

Reasons to avoid

-
Filters are expensive to replace 
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UV light could disrupt light-sensitive sleepers

Two feet tall and one foot wide, this is a little machine that can purify large areas. The Molekule Air Pro can cover and clean spaces up to 1,000 sq. ft. That's twice the size of a standard studio apartment. 

Most air purifiers incorporate HEPA filtration technology to capture all sorts of small particles and pathogens. The Air Pro has a HEPA filter, and a PECO filter, too, which claims to destroy pollutants at a molecular scale. This machine breaks down dust mites and mold spores, bacteria, and viruses and turns them into harmless gases like carbon dioxide and water vapor. 

These filters won't last forever, and you'll need to replace them every six months. This machine is only compatible with Molekule-certified filters, which come at a premium price. 

The Air Pro keeps track of each impurity it encounters and logs them all in the Molekule app, under 'Air History'. Here, you can view the changes to particle levels in the last five minutes or over the past four weeks. 

The Air Pro works hard and keeps noise to a minimum, with a noise range of around 30-65 dB. That's somewhere between a whisper and a normal conversation. At its lowest speed setting, the Air Pro should be suitable for sleep. 

That is, if you aren't sensitive to light. On top of this machine is a pulsing blue UV light. It's just a little dot, but it can be irritating.

The Air Pro isn't perfect. It's a little high-maintenance and it's less suitable for bedroom use. But if you're looking for a purifier to clean large spaces, you won't find a more powerful machine. 

You can find more detail in our Molekule Air Pro review.

Best value air purifier

Best value air purifier

Specifications

Coverage: Up to 1358 sq.ft.
Filter: HEPA
Dimensions: 9.84 x 15.2"
Weight: 7.27 lb.

Reasons to buy

+
Purifies a 120 sq. ft. room in 5 minutes
+
2-, 4-, and 8-hour timer settings
+
Auto, Turbo, and Sleep modes

Reasons to avoid

-
No app-connectivity

Not everybody wants or needs a smart machine that links up with Alexa and speaks to you in emojis. Sometimes, you just want an air purifier that can purify your air. The Dreo Macro Pro is a highly effective cleaner that comes without those inessential, expensive extras. 

This machine removes all your everyday pollutants, from pollen to pet dander, and tackles airborne pathogens with a 99.99% success rate. There's a near-silent sleep mode for night-time use, as well as a turbo setting for quick, loud, deep cleans. If you like your machine to do the work for you, just switch on the auto setting.

For a little machine, it's pretty powerful. Dreo claims the Macro Pro can purify areas as large as 1358 sq. ft., though it works best in smaller spaces and single rooms.

All this for just over $100. That's not nothing, but it pales in comparison to the cost of many of the best air purifiers, which can exceed $1000. The running costs are lower, too, since the Dreo Macro Pro is Energy Star-certified. If the machine ran non-stop for a full week, it would only cost you 30 cents in energy bills. 

Of course, if you're shopping for a smart purifier, you'll be disappointed. There's no Dreo Macro Pro app, which makes it hard to know what's going on inside your machine. The only indicator is a little light on top of the purifier, which pulses blue, green, orange, or red depending on pollution levels. 

This machine isn't smart enough for everyone. But if you're looking for an effective purifier that works quickly and quietly, the Dreo Macro Pro will do the job. 

You can find more detail in our Dreo Macro air purifier review.

Best smart air purifier

5. Mila Air Purifier

Best smart air purifier

Specifications

Coverage: Up to 1000 sqft
Filter: HEPA
Dimensions: 18.5 x 14.7 x 14.7in
Weight: 17.9lbs

Reasons to buy

+
Offers comprehensive air quality information
+
Customizable filters
+
Connected to app

Reasons to avoid

-
Large and a little awkward to place

This air purifier is designed by three dads, living amongst the smog of Shanghai, who wanted cleaner air for their kids. When they couldn't find a machine that met their needs, they made their own: the Mila Air Purifier.

You can measure and adjust the quality of your air inside the Mila app. Once you set the fan speed on a sliding scale of 1% to 100%, the machine will take care of the rest.

Mila also monitors for mold growths and carbon monoxide leaks to prevent accidental poisoning. The app explains it all in clear language, using words (and emojis) you can understand. 

This machine comes with custom filters to suit specialist needs. Whether you're an animal-lover who's looking to rid your air of pet smells and shed hairs, or a new parent who wants to protect your child's delicate immune system, Mila's got a filter for you. 

It can be a little overwhelming to have so much information at your fingertips. If you suffer from health anxiety, you might want to shop elsewhere, or at least minimize your Mila screen time. 

This fan has something for everyone. And, as smart tech goes, the Mila Air Purifier is pretty affordable. It's cute and compact to boot, so it will look just as good in your child's nursery as in your family room. 

Best air purifier for pet-owners

Best air purifier for pet owners

Specifications

Coverage: Up to 350 sq.ft.
Filter: HEPA
Dimensions: 9.84 x 15.2"
Weight: 27lb.

Reasons to buy

+
Compatible with Samsung Smart Things App
+
Wind-free and pet-friendly functions
+
Some filters are washable

Reasons to avoid

-
Pretty high-maintenance

Air purifiers aren't the most attractive appliances. Many are big and bulky, designed with function rather than form in mind. At least Samsung have added a little style to their Bespoke Cube. With curved edges and a cross-hatch design, the Cube is cute and compact, so it should sit pretty in any corner. 

The Cube incorporates 360-degree air purification for whole-room cleaning, as well as a five-stage filtration process. Pollutants and pathogens pass through the pre-filter before they're zapped by the electrostatic discharger, deodorized, detoxed, and finally deactivated by UV light. 

As purifiers go, it's a little difficult to assemble: even our expert struggled to tell which piece went where. Once it's up and running, though, the Cube is easy and intuitive to use. There's an interactive interface that tells you the quality of your air, inside and outside. As for the machine, you can turn it on with just a touch, or even the sound of your voice, when you connect to the Samsung SmartThings app. 

The Cube comes with a child lock function, as well as a filter change alarm, for safe and hygienic use. The biggest issue is the limited coverage. The Cube can only clean areas of up to 350 sq. ft. That