The best air purifiers can help to improve the quality of your indoor air, helping to keep you comfortable and healthy even in high-pollution areas like cities. Not only are air purifiers great for general home and self-care, they can also help to support those with allergies, asthma and other respiratory conditions by trapping pollutants before they can cause irritation.
What the experts say
“Most portable air cleaners can filter particles from the air, and some can filter the small particles of greatest health concern – those that are smaller than 2.5 microns in diameter. There are also air cleaners that can filter both particles and gasses. The longer the air cleaner runs, the more air it filters.” – Ernesta Jones, the Environmental Protection Agency
According to Dr. Deborah Lee, a medical doctor and spokesperson for Dr Fox Online Pharmacy, air purifiers can be an important tool for good health, particularly for those with asthma. “In a 2004 American study of 937 children with atopic asthma, those who used a HEPA filter had significantly fewer asthma symptoms during the 12-month study period, as compared to those who did not,” she says. “There were also demonstrably lower levels of allergens such as house dust mite and cockroach allergen detected on the bedroom floor in the treatment group, and furthermore, these lower allergen levels correlated with clinical improvements in asthma.”
You will notice that HEPA filters feature significantly in our guide below, and this is because they adhere to the highest industry standards, removing at least 99.97% of allergens down to 0.3 microns in size. This is smaller than most indoor air pollutants. For more information on how the best air purifiers can help with your health, you can see how air purifiers help with allergies and how air purifiers help with asthma.
The Live Science team is dedicated to recommending only top of the range products to our readers, so we have put these air purifiers through extensive testing to verify their performance, using an air particle monitor. If you want to see exactly how your air quality at home measures up, you can purchase a particle counter online, or if you think you may live in an area of lower air quality, you can check your local air quality index to see if an air purifier might be a good investment for you.
Scroll down to see our full list of the best air purifiers — or skip to our FAQ section, to read through advice from doctors and environmental…