HEPA air filters promise to take nasty things out of the air, removing cigarette smoke, pollen and other irritants. How do they do this? Appliance Science looks at how HEPA air filters work, and how ...

For a filter to be certified high-efficiency particulate air (HEPA), it must be tested and proven to filter particles as small as 0.3 microns to 99.97 percent efficiency at its designed air flow. To ...

HEPA filters have become an increasingly common option in smart homes for those who really, really want to make sure they’re removing every bit of allergen or potential infectious particle. Often ...

The air inside your home can be as or more polluted than the air outside, according to the EPA. An affordable air purifier can help remove dust, smoke and other pollutants — many of our favorites, ...

Think about the ways you protect yourself and your family. If you are carefully reading the boxes of toys and food to make sure there isn’t some hidden chemical nastiness, you should make sure that ...

Using inexpensive air filters may help reduce cardiovascular disease risk that results from exposure to air pollution, according to researchers from Canada, who studied healthy adults living in a ...

Keep your indoor air clean with air purifiers from trusted brands like Dyson, Mila, and Levoit.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› Advice, staff picks, mythbusting, and more. Let us help you. Updated August 5, ...