Do Air Filters Stop Germs From Spreading Through Your Home, and Which MERV Ratings Are Best To Capture Viruses, Bacteria, and Other Airborne Threats?
A standard furnace filter doesn’t kill germs. It traps the particles that those germs ride on, and only if the rating is high enough. The MERV (Minimum Efficiency Reporting Value) number printed on the side of your filter is what decides whether that trapping actually happens. We’ve answered this question for thousands of homeowners, and … Read more