Best air purifier 2022: the best air filters for easier breathing at home

The best air purifiers to give even the air you breathe a little spring clean, monitor pollution levels and keep your home healthier, from Dyson, Blueair and more

best air purifier: Blueair Blue Pure 411 air purifier
(Image credit: Blueair)

As the warmer weather arrives and we continue switching our homes from cosy caves to airy sanctuaries, one thing we don't tend to think about enough is the quality of the air in our environment. The best air purifiers are an easy fix, gaining in popularity due to their promise of eliminating odours, pollutants, and bacteria from the air.

Of course, the last few years have also been a time of thinking more about our health, as well as the health of those around us. For example, air purifiers are designed to eliminate nasty irritants, from smoke and pollution to dust and pet hair. 

Some can also serve multiple purposes, which will comfort anyone reluctant to incorporate yet another bulky gadget into their living area. Instead, save space with something like the Blueair Blue Pure Fan, which acts as a cooling fan, or something compact, like the Levoit Core 300.

Scroll down to see how we ranked the best air purifiers on the market right now or if you want cooling power without the purification element, check out our guide to the best fans.

 The best air purifiers: tried and tested by us

Blueair Blue 3210 Air PurifierReal Homes Rated Gold badge

(Image credit: Blueair)

1. Blueair 3210

Best air purifier for bedroom

Specifications

Recommended room size: 17.6m2
Smart?: No
Works with: N/A
Noise: 18-47dB
HEPA?: No
CADR: 123
Speeds: 3
Dimensions: H42.4 x W20 x D20cm
Weight: 1.7kg

Reasons to buy

+
Lovely colour options
+
Compact size with 360-degree filter
+
Quietest on our list
+
Good price

Reasons to avoid

-
No smart home compatibility

A lovely-looking update from Blueair, the 3210 prioritizes style along with functionality. Many air purifiers claim to be ‘whisper quiet, but this one actually means it. While testing, we barely noticed the device, even when it was working hard to clear the air after cooking or a spray of air freshener around the room (if you ever want to make sure your air purifier is doing something, that's the way!).

All in all, this offering from Blueair is one of the simplest air filters we've tested, and it's honestly the better for the lack of bells and whistles. Quiet and low on additional features, it might not suit those who like to look at data or connect their devices to their smart home, but it's a winner for everyone else.

Real Homes rating: 4.5 out of 5 stars 

Philips AC3033/30 Expert Series 3000i Connected Air PurifierReal Homes Rated Silver Badge

(Image credit: Philips)

2. Philips Air Purifier 3000i

Best large room air purifier

Specifications

Recommended room size: 104m2
Smart?: Yes
Works with: Alexa
Noise: from 34dB
HEPA?: Yes
CADR: 520
Speeds: 3
Dimensions: H64 x W29 x D29cm
Weight: 9kg

Reasons to buy

+
Works with Alexa and Philips Clean Home+
+
36-month average filter lifespan
+
Great for larger spaces

Reasons to avoid

-
Large and heavy
-
A bit noisy even on lower settings

With the best dust-busting rating on our list, the Philips AC3033/30 Expert Series 3000i Connected Air Purifier is a smart addition to the home that has a huge amount of air purification power. Designed to be used in spaces up to 104m2, the AC3033/30 is a great choice for larger homes - even more so because the device itself is relatively large and heavy when compared with its peers.

You can monitor air quality in your home via the digital display on top of the device or with the Philips Clean Home+ app. This app also allows the air purifier to work with Alexa voice control, making it super easy to control in a variety of ways and, as the in-built air quality sensors allow the AC3033/30 to adapt to the environment in real-time, you might not even need to think about it until the filter needs changing - which should only be once every 36 months!

Real Homes rating: 4 out of 5 stars

Levoit Core 300Real Homes Rated Silver Badge

(Image credit: Levoit)
Best cheap air purifier

Specifications

Recommended room size: 20.3m2
Smart?: No
Works with: N/A
Noise: 24-50dB
HEPA?: Yes
CADR: 145
Speeds: 3
Dimensions: H36 x W22 x D22cm
Weight: 3.4kg

Reasons to buy

+
Excellent price
+
Customizable filters for different needs
+
Built-in timer
+
Compact size

Reasons to avoid

-
No app or smart home compatibility

The Levoit Core 300 True HEPA air purifier might be free of fancy features like smart home compatibility, but it still rates highly as a solid, reliable, basic model for those curious about how an air purifier can improve their indoor air quality. Customizable filters are a unique selling point of the Levoit Core 300, and you can choose the one that best fits your needs.

All in all, while the budget air purifier from Leviot doesn't cover as much ground as some other products on this list, it impressed us with its stripped-back functionality compared to pricier models.

Real Homes rating: 4 out of 5 stars | read our full review of the Levoit Core 300

 The best air purifiers: more top picks

Dyson Pure Cool Me

(Image credit: Dyson)

4. Dyson Pure Cool Me

Specifications

Recommended room size: For personal use
Smart?: No
Works with: N/A
Noise: N/A
HEPA?: Yes
CADR: N/A
Speeds: 10
Dimensions: H40.1 x W24.5 x D24.5cm
Weight: 2.8kg

Reasons to buy

+
Cools as it purifies
+
8-hour timer
+
Quiet Mark certified
+
10 speed settings

Reasons to avoid

-
No app support
-
Some information (noise, CADR) unavailable

If you want to ensure you keep cool as your indoor air is being filtered, then the Dyson Pure Cool Me Purifying Fan could be the best option for you. Like other Dyson products, the fan boasts 10 speed settings, and Dyson Core Flow technology directs airflow just right.

The oscillation function allows it to move 70 degrees from side to side, and you can change the direction of airflow by manually adjusting and angling the middle of the dome. The timer, compact size and Quiet Mark certification make it a good choice for the bedroom, especially if you tend to run warm at night, but it's also portable enough to be moved from room to room as needed. 

Dimplex DXAPV3N

(Image credit: Dimplex)

5. DIMPLEX DXAPV3N Portable Air Purifier

Specifications

Recommended room size: 28m2
Smart?: No
Works with: N/A
Noise: 50dB
HEPA?: Yes
CADR: 89
Speeds: 2
Dimensions: H33.3 x W24.8 x D13.3cm
Weight: 1.4kg

Reasons to buy

+
Affordable
+
Carry handle for portability

Reasons to avoid

-
Noisy
-
No smart home compatibility

Recommended for those looking for an effective air purifier that won't cost the earth, the Dimplex DXAPV3N is a compact and well-designed machine that enlists carbon and HEPA filters to rid small rooms of unwanted elements in the air. It's small enough to sit on a bedside table, but be aware that it's not the quietest on our list.

Plenty of reviewers pointed to unwanted noise levels coming from the interior fan, suggesting a cheaper build. But that has thankfully translated into savings for the user, as it's the cheapest air purifier in our guide. It's super simple to use and manage long-term, but those who are more interested in a smart purifier or something with more settings might want to look elsewhere.

How we test the best air purifiers

At Real Homes we are dedicated to testing every product we feature in our buying guides, putting them through the everyday challenges they would face in our reader's homes. This means that you can trust that our recommendations are based on real-world testing. However, we are not able to test everything, but this will be made clear in the guide.

When testing an air purifier we look at things such as its affordability, ease of set-up and use, noise levels, size, and design. We also look at the promises made by brands, and trial whether these bear out in reality.

How to choose the best air purifier for your home

best air purifier: Blueair Blue 3210 all colour options

(Image credit: Blueair)

How large/small does my air purifier need to be?

It’s a question on many buyers' minds since we only have so much real estate to dedicate to another smart device. The thing to pay attention to here is the capability of the air purifier rather than its physical bulk. So the best thing to do is measure the space in which you wish to place your purifier (in m2) and use that as a guide. Broadly speaking, the price moves up at the same pace, but there are bargains to be found.

Of course, if you’re lucky enough to live in a grand Edwardian or Victorian home, then it may also be worth allowing for this when you hone in on your options.

Do air purifiers remove smells?

While the best air purifiers do a good job of removing a whole host of unwanted things from the air around us, many people are keen to know how effective they are against smells. Whether that's cooking smells or the odours that come from our pets, if this is a problem in your home, you should look for a charcoal or carbon filter - both known to trap and eliminate common odours in the home.

How much should I spend on an air purifier?

The cost of the perfect air purifier is, again, very much dependent on how much you want it to do – much like the best dehumidifiers. If you already use a fan and/or heater in hot and cold months, respectively, then it could actually be better value for money to invest a little more in a multifunctional device.

Similarly, for a single room, we would recommend a budget of around £150 but, if your space is much larger, then £500-or-so should do the trick.

Caroline Preece
Caroline Preece

Caroline has been part of the Real Homes ecommerce team since the start of 2021, after working for the last decade as a journalist across publications in technology, entertainment and various other areas. She took over smart homes content for the site shortly after, and can now be mostly found swooning after the latest gadget or smart speaker release. In her spare time, she's usually obsessing about space-saving and DIY hacks for small spaces, and how to affordably make a rental feel like a home.

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