How Long Does a 16x22x2 Air Filter Last?
The standard “every 90 days” advice for 16x22x2 air filters is outdated and often wrong. After servicing thousands of HVAC systems across diverse home environments, we’ve found that filter lifespan varies dramatically—from as little as 30 days in pet-heavy households to 120 days in ideal conditions—and most homeowners are either changing filters too early (wasting … Read more