Mine seems to be cloth with plastic frame. I've blasted them out with carb
cleaner, or ether spray. Get the sawdust and oil out. Let it dry, and put
it back to work.
Christopher A. Young
Learn more about Jesus
I didn't have to replace my air filter, as it was still in good shape,
and stood up to a thorough cleaning and drying. That was made the
biggest improvement on my saw, and judging from how dirty it was, I'm
guessing was the reason that the previous owner sold it to me.
Some people would rather re-purchase an item than perform basic
maintenance on it, which works great for me because I don't have a
problem maintaining my equipment.