How Often to Change MERV 13 Filter for Virus Protection: Replacement Frequency, Lifespan, and Signs MERV 13 Filter Needs Changing in Homes with Pets, Allergies, or Wildfire Smoke
Sixty days is the average gap we see between a MERV 13 filter leaving our warehouse and the same household ordering its replacement. Some homes stretch that to ninety. Others come back at thirty, asking if something’s wrong. Nothing’s wrong. The filter ran out of capacity earlier than the calendar said it should, because pets, … Read more