You’re probably aware that the lint that builds up in a dryer vent is a potential fire hazard. But what about the lint that accumulates in your bathroom exhaust fan?

Just like dryer lint, bathroom fan lint is flammable, making it a fire hazard.

Bathroom exhaust fans — generally installed in the ceiling, and made with or without lights — are designed to remove moist air from the room. They help prevent steamed up mirrors, damp walls, and fogged windows, as well as remove odors.

BUT … the moist air combines with air particulates, and lint builds up. It builds up on the outer cover and also inside, on and around the motor. Over time, the lint accumulates to the point where heat builds up and can cause the motor to overheat.

Since the lint also acts to insulate the motor, the heat build-up gets accelerated.

Heat + lint = trouble!

The lint is an easy-to-ignite fuel source for fire, which in turn ignites other nearby combustible building materials in the ceiling and attic. And now you have an attic fire.

Travelers Insurance alone has documented multiple millions of dollars of loss due to fires that originated in overhead bathroom exhaust fans.

ACTION STEPS YOU CAN TAKE TO PREVENT THIS:

1. Inspect and clean all bathroom exhaust fans regularly.

2. When cleaning, remove the fan cover to clean and remove lint from around the motor, paying careful attention to all air-flow areas.

3. Wash the fan cover in warm soapy water to remove all lint. If there is any mold growing, add bleach to the cleaning mixture. Make sure the cover is completely dry before putting it back up.

Yes, this adds some time to your cleaning routine … but it’s worth it to decrease your risk of a fire. So please work it into your routine and be safe.

Until next time … Keep it Clean!