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Shop: Unfolding Nature Unfolding Nature: Being in the Implicate Order   Bridgetown Botanicals Bridgetown Botanicals

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Invisiblephil823
Deep Thinker


Registered: 03/27/06
Posts: 253
Loc: Middle Somewhere
is it flow hood worthy?
    #26732458 - 06/09/20 07:37 PM (3 years, 7 months ago)

I've been looking at making a flow hood lately and came across a deal on new in box hepa filters. I think I could make them work if the seller is willing to ship them. They are $40 a pop and he has 3..so I could even double them up if I needed. The stats are as follows

CFM 260 / IN W.G. 1.0 / % PEN 0.028
35-3/4" x 17-5/8" x 1"

So it's about 4.5" ft2 so 450 ft3/min = 450cfm @ 1.2 static

What I don't get is the filter says a cfm rating of 260... And the math says that I need 450cfm from a fan to end up with the needed 100ft3 for laminar.

Would these filters be good enough for this project?


If this falls through has anyone recently tried finding any second hand flow hoods or FFU's or bargain shopped for parts?


Edited by phil823 (06/09/20 07:38 PM)


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OfflineSpirit-Crusher
DOOM HIPPIE

Registered: 04/24/19
Posts: 358
Loc: PNW
Last seen: 15 days, 15 hours
Re: is it flow hood worthy? [Re: phil823]
    #26733143 - 06/10/20 01:10 AM (3 years, 7 months ago)

I just scored three Envirco MAC 10 2x4 FFU's in excellent condition for 800 bucks locally. I'd say that was an excellent deal. It took about 8 months searching daily. Was about to order one online for 800 bucks + the 300 or so to ship the damn thing. I'm glad I waited.


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Offlinemushpunx
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Registered: 04/20/14
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Re: is it flow hood worthy? [Re: phil823]
    #26733176 - 06/10/20 01:30 AM (3 years, 7 months ago)

Get a HEPA that is at least around 6" thick.
The ones this guy has are only an inch thick.

A home built flow hood is way cheaper but parts will still cost a little bit. I say just keep using a still air box while you save up some money....


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Invisiblephil823
Deep Thinker


Registered: 03/27/06
Posts: 253
Loc: Middle Somewhere
Re: is it flow hood worthy? [Re: mushpunx]
    #26733866 - 06/10/20 09:07 AM (3 years, 7 months ago)

Awesome thanks for the quick input, I didn't want to miss a deal if it was worth it.


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