Reply by Crashcup

  • Advertise with us

Posted on Activated Carbon Filters - Experience?

View Crashcup's profile


53 posts in 1766 days

#1 posted 02-17-2017 06:53 PM

My spray booth has two 5 ton blowers, around 2000 CFM for each blower, 4000 CFM total. The shop is 4000 sq ft.

Holy cow, 4000 sf! Makes my garage sound like a shack!

That size may have something to do with the temp not dropping so fast. Assuming 10ft ceilings, that’s 40,000 cf. If your door is just cracked, the blowers may not be pulling their rated flow. But assuming they are moving 4000 cfm out, they’d have to be pulling 4000 cfm in. That’s an air exchange of 0.1 per minute.

Based on recommendations I’ve seen for a linear flow rate of 100 fpm in a cross-flow both, the small booth I’m envisioning would need 7200 cfm.
My garage is only about 6240 cf, so that would be an exchange rate of about 1.2 per minute. Over 10 times higher rate, so I think I might lose heat a lot faster than your shop.

It’s making water-borne finishes sound more and more like the way to go. I’ve always had a bias toward solvent-based as being more durable… and I know water-borne is way better than it used to be… but I’ll have to try them for myself.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics