For most Spokane-area homes, MERV 8 to MERV 13 is the right air filter rating — high enough to capture dust, pollen, and pet dander, but not so high that it restricts airflow through your HVAC. MERV 11 is a great middle ground for households with allergies. Higher MERV (15+) requires HVAC equipment specifically designed for it.

MERV recommendations

  • MERV 8 — Standard household, no pets/allergies
  • MERV 11 — Homes with pets or mild allergies
  • MERV 13 — Severe allergies, asthma, wildfire smoke season
  • MERV 15+ — Only with HEPA-bypass or system designed for high static

Pushing MERV too high without checking your system’s static pressure cap is a leading cause of HVAC failure. We confirm the right choice during AC maintenance or furnace maintenance.