I have an 8x 10 workshop. I currently use a 1.5 hp dust collector with a 3 micron bag. I want to ensure that the finer dust does not stay in the workshop, but don't want to spend a ton of money getting new dust equipment. This unit has only one bag attached to the blower, like the Grizzly G1163.
Here's my thought for filtering the finer dust coming out of the bag:
1. enclose only the dust bag in an air tight box. Separate it from the blower with a short 4" pipe.
2.at the other end of the box build a slot for an Hepa filter, like a Merv 13 or better square filters found at HD. This would represent a separate chamber, so the air can only pass through the filter on the way out of the box.
3. attach a 4" pipe and bring it close to my basement window( not through), which currently has two cheap exhaust fans.
I could bring the pipe outside if I had to, but I am concerned about intake air, so the pipe close to the fan might be a good compromise......, I don't know.
Given the small size of the shop and the modest cfm requirements, it should work. Then again, many have gone to the dark side when it comes to dust.....
I welcome suggestions from folks more knowledgeable than I.
Thanks
tc