To build his purifier, [Adam] found a HEPA H13 rated replacement filter ... fan so it draws air through the center of the filter. In terms of testing, [Adam] wasn’t worried about the purifier ...

For this roundup, we considered the models with HEPA filters that excelled in our rigorous testing based on ASTM International industry-standard methods. Ahead, learn more about the best HEPA ...

For this roundup, we considered the models with HEPA filters that excelled in our rigorous testing based on ASTM International industry-standard methods. Ahead, learn more about the best HEPA ...

The very best air purifiers for smoke are designed to filter out harmful microscopic particles, helping you breathe better.

To combat hay fever or pet allergies, your air purifier should be equipped with a High Efficiency Particulate Absorbing (HEPA) filter. "These filters can remove up to 99.97% of small airborne ...

As three major fires continue to burn in the Los Angeles area, 17 million residents are affected by the drifting smoke. An air purifier with a HEPA filter can help.

they’re physically big because of the big HEPA filter inside of them,” says John Galeotafiore, associate director of product testing at Consumer Reports. “That’s the one thing they all ...

During the testing period, Allain focused on the unit ... but it’ll shorten the lifespan of the HEPA filter. If you leave the unit on all the time, Shark recommends using the auto mode ...