I recaulked by bathtub a few weeks ago and decided to clean the bathroom fan while I was at it, figuring a clean bathroom fan would exhaust the fumes more quickly than a dirty one. I’ve cleaned the vent cover but never the fan itself.
The fan blades were each covered with about a quarter-inch of dust – enough to almost completely close off the airspace between the blades. The dust was gray and looked like ashtray buildup. Mmmm, yummy. I might be the first person to clean this fan since the house was built 40 years ago.
I started cleaning the fan in place, but it was difficult to reach all the parts, and gross to have that gray dust falling on my hair. So I unplugged it and brought it down to the kitchen sink.
I cleaned the fan in my kitchen sink using water and a couple old toothbrushes, being careful not to get the motor wet.
Then I let it dry for a few hours before reinstalling it. This is what it looks like now:
It’s not sparkling, but it’s a lot better than it was. There’s no dust build-up on the blades to block the airflow, so it exhausts much better than it did before. For years, I’ve had in the back of my mind that I needed a new bathroom fan. Turns out all I needed to do was clean it.