When it comes to home air purifiers, HEPA filters are considered the best at removing at least 99.97 percent of airborne contaminants 0.3 microns in size, which is equivalent to MERV 16.

If you slapped the strongest MERV 16 filter on, you’d likely damage your motor because most aren’t set up to support that (and homes don’t usually need it). So before making modifications to ...

The recent wildfires in Altadena and Pacific Palisades have been contained, but wildfire impact on air quality is something Californians should prepare for.

The most commonly used system applies a MERV number (minimum efficiency reporting value) to each filter, which was developed by ASHRAE (formerly the American Society of Heating, Refrigerating and ...

MERV filters are rated on a scale from 1 to 16, with MERV 13 and higher being recommended for wildfire smoke. While MERV filters effectively trap fine particles, they may not capture the smallest ...