Performance may vary. Not all Blueair air purifiers have been tested against SARS-CoV-2 and Blueair does not claim to kill/prevent transmission of COVID-19.

Air purifiers can help filter allergens, pollutants, and irritants from the air and improve air quality. Air purifiers often use a filter, electrostatic, or UV light-emitting technology to remove ...

Room Air Purifiers (163) The very best room air purifiers we tested were effective at cleaning the air of dust, smoke, and pollen at their highest and lowest speeds.

Activated carbon filters can last between three to six months. Electrostatic air filters can last for years. Again, these estimates will vary by air purifier model and the conditions of your home.

But before you buy a $30 room air filter at a discount store, buyer beware. Tanya Christian is with Consumer Reports, which just tested several purifiers, and has a caution for shoppers.