I removed the blowers from my Afton bay and the exit blower was pretty clean the room air blower was a mess!. It was covered with dust inside the squirrel cage. I removed the entire double cage with motor and took outside and cleaned it off with the compresser and oiled it up and reinstalled. It took 25 minutes to do this. the stove is so easy to work on and it cleaned up very nice. But man lots of dust in the cages.....