On Tue, 04 Dec 2007 05:43:29 -0500, Andy H wrote:

Hi Larry,
What did it cost you to build this air cleaner? Ive been looking at
building one of them for some time. Where do you get the squirrel cage
blower?

Not much. The box was made from some plywood I already had. I got the
squirrel cage blower from American Science and Surplus but I can't
remember the cost - something under $20 is my best guess. I use one
ordinary fiberglass furnace filter (16x20) backed up with an allergy
filter. When they get dirty I vacuum them. Every 3 or 4 years I replace
them.

But I don't get out in the shop as much as some, and I don't run the air
cleaner when using hand tools. Maybe 4-6 hours a week.