Should You Run Your Central AC During Wildfire Smoke (September 2026) Expert Guide

Should you run your central AC during wildfire smoke

Yes—most homes should run central air conditioning during wildfire smoke, provided the system is recirculating indoor air and any outdoor-air intake is closed. A compatible higher-efficiency HVAC filter can catch some smoke particles as air moves through the system, while cooling helps you keep windows and doors shut. The answer changes if your system deliberately … Read more