washing Dust Buster filter
I have a Dust Buster with a washable filter. How do I wash it? Do I swish it in a bucket of water and soap? Put it in the dishwasher (without dishes!)?
How clean does it have to be before I get it wet? I have brushed most of the dirt out of the crevices/folds. I'm afraid if I wet it, I'll have mud.