"Rick Brandt" writes:
Jeff Wisnia wrote:
Agree with the question. The paper filters for my Rigid shop vac cost
about $15. Too rich for my blood to just toss them away the first time
they get dirty. (Or the second, third, fourth, etc. for that matter.)

I own two. When the one in use is dirty I replace with the other one and
then use a hose with a spray nozel to clean the dirty one. It then goes on
a shelf in the shop and will be dry and ready to use by the time the fresh
one has gotten dirty.

If you have compressed air available, you can use a short air gun to
blow out the filter from the inside. This will remove a lot of what's
stuck in the pleats of the paper filter. Do this outdoors, placing
yourself upwind. Probably not as effective as washing, but the cleaned
filter is ready to be used again immediately.

Dave