Wow Stone, now you've surprised me! Congratulations.
Originally Posted by StoneNYC
Sorry to have hijacked your thread... Now you see the gamut runs from Drew's cleanroom to my pigpen. Of course you will want to be somewhere in-between. I don't think I'd spend $900 for a HEPA filter. I once picked up a nice old used one at a flea market for $20 and ran it in my cabin darkroom. That thing was big as a speaker and had a squirrelcage fan on variable speed control. It really cut down the dust. That cabin had small-ish rooms. Smooth floors, ceilings and walls were easy to clean.
So I think a HEPA filter would be great, but don't spend that much.