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12 best air purifiers for a cleaner, healthier home in 2025
Improve indoor air quality with our expert-tested machines

Along with the best air fryers and the best coffee machines, air purifiers are becoming a must-have gadget for modern living. As we pay more attention to air quality both inside and outside our homes, the best air purifiers can be a godsend, particularly if you suffer from hay fever or have pets.
The job of an air purifier is to clean the air inside our homes by detecting and trapping tiny pollutant particles, such as dust, pet dander (the animal equivalent of dandruff), pollen, smoke and even unwelcome odours. It does this using high grade filters that can trap even the tiniest particles.
Our experts at the Good Housekeeping Institute tried a range of leading air purifiers to find the best for your home. Keep scrolling for our full reviews, but here they are in one handy list.
Best air purifiers 2025
If you’re replacing an existing air purifier, there are plenty of places for you to safely recycle your old one. Find your nearest electrical recycling point, or read our guide on how to donate or dispose of your appliances and tech for extra guidance.
How do air purifiers work?
These clever gadgets use two different filters to clean the air thoroughly, with most air purifiers claiming to remove over 99% of nasties from the air.
The first filter is usually a larger one that can be rinsed, dried and reused, and is not too dissimilar from those you find in the best cordless vacuum cleaners. This deals with the larger particles, such as dust and hair.
The second filter is much smaller and can't be washed, which means it’s disposable. On the positive side, depending on how much you use your machine, it should last a good six months.
It's this filter that catches smaller particles in the air. Some are known as a high-efficiency particulate air filter (HEPA) and filters that meet these standards can catch even the most microscopic of dust particles – generally as small as 0.3 microns, but some Dyson models claim to catch ones that are just 0.1 microns.
How to choose an air purifier
The requirements of a good air purifier are simple – it needs to improve the air quality within your home, as quickly and quietly as possible.
Features: To find the right air purifier, you need to decide what you want it to do. That may sound obvious, but the Dyson Purifier Hot + Cool not only purifies air, but also cools and heats it. And if you have a specific type of allergy, you'll want a purifier that really will pick up all those minuscule particles.
Noise: If you’re going to use your air purifier at night, look for a quiet model, especially if you’re a light sleeper.
Portability: You'll need to decide where your device is going to live and whether you're going to want to move it frequently. If so, make sure it's easily moveable and isn't too heavy.
Size and reach: Check the size of the room it's going to purify. This matters hugely, as you need to ensure the machine you buy can tackle the entire space. Some can purify rooms as large as 135m squared, while others only stretch to areas measuring 10m squared.
Wattage: Generally, the higher the wattage, the more energy intensive a product will be. The amount of energy a purifier consumes equates to how much it will cost to run per hour.
Our experts tested the energy consumption for all the models below, running them for an hour on their highest setting, and found that none used more than 1 pence of electricity in that time.
Hannah is our homes editor, specialising in reviewing the latest kitchen appliances, cleaning products, mattresses and bedding, and crafting equipment. Hannah has written about hundreds of products, from air fryers to smoothie makers to pillows, and is committed to finding the most reliable and best value for money buys.
Hannah is also interested in sustainability in the home and has completed a course with the University of the Arts London in sustainable textiles, so she can help cut through the noise on what’s green and what’s not. Hannah has an MA in Magazine Journalism and has previously worked as a freelance lifestyle and women’s sports journalist, working for Stylist, Sky Sports and more.
Hannah has also previously worked in a florist and can normally be found caring for her house plants or sewing something new for her home or wardrobe.
Megan is the Good Housekeeping Institute’s homes writer. She loves diving into the latest product releases to find the very best buys on the market. When she’s not writing about the newest gadgets and gizmos for your home and garden, you’ll find her cooking, running and exploring London’s foodie hotspots – or trying to make friends with every dog she passes. Megan has an MA in Magazine Journalism and has previously written for Stylist, Glamour, TimeOut, SquareMeal, and YOU magazine. You can find Megan on Instagram @meganlouisegeall and on X @megan_geall
Millie is freelance journalist and editor with five years’ experience writing product reviews, buying guides, breaking news and about the latest trends.
Millie has also reviewed countless restaurants and written travel features for British GQ, The Telegraph and the Independent, and has interviewed a number of leading chefs, including Jamie Oliver, Heston Blumenthal and Raymond Blanc.
Founder of creative catering brand @grazeandgorge, Millie also spends her time creating seasonal recipes and tablescape content, as well as planning her next golden retriever-friendly getaway and rearranging her own home bar cart (... again).
Blossom is passionate about finding the best home products and appliances for GH readers. As head of the homes testing team, she has led reviews across multiple categories, from pizza ovens, and smart plugs to portable fans and hobs. She enjoys delving into the intricacies of products and refining testing protocols to ensure we’re testing them against their claims. Her aim is to find the top-performing products on the market, to help take the hard work out of housework. Blossom’s most notable accomplishment in the lab has been toasting 528 slices of bread in her quest to find the best toasters money can buy. In her free time, she openly admits to being a music geek and indulges her creative side through crocheting, baking, singing and writing.


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