Monthly Archives: December 2020

Smoke from Wildfires Can Clog Your Cabin Air Filter

Since there was so much wildfire smoke in the air in August and September, we have had several people ask us if that would affect their engine air filter. No, forest fire smoke will not do anything to your engine air filter. The smoke particles are so tiny, they just pass through the filter like other small particles. The smoke may irritate your eyes and lungs, but it is harmless to your engine. However, most cars have a cabin air filter, which is designed to clean the air blown out your cabin air vents. This filter will remove the small particles that bother people and smoky air will shorten its life. A lot depends on how often you use your heater and air conditioner, or even just turn on your fan. Also, most cars allow you to choose between outside air or recirculating cabin air. When you recirculate the air, the filter is bypassed and not used. When you switch to bringing in outside air, your filter is engaged, and this will eventually clog it up. Some cabin air filters are conv ... read more