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Air purifiers advice guides

4 articles
Find our how to choose, buy and maintain the best air purifiers and how to keep your home allergen free.

How to buy the best air purifier

By Which?
The best air purifiers clean the air in your home quickly and effectively, and without making too much noise. Use our expert advice to make sure you buy one of the best air purifiers
30 July 2021

How to improve your indoor air quality at home

By Which?
As well as buying an air purifier, there are steps you can take to improve the quality of the air in your home. Find out what you can do.
11 June 2021

Should you buy a Dyson air purifier?

By Which?
Want to improve your indoor air quality at home? Find out what Dyson air purifiers can do, how much they cost, whether they work to reduce indoor air pollution and how Which? tests air purifiers.
2 June 2021

How we test air purifiers

By Christina Woodger

Our stringent tests reveal the the air purifiers that do a great job of efficiently cleaning the air in your home. Find out more about our tests below

11 June 2021