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Ghatti
Totally not a Federal Agent

Registered: 06/23/14
Posts: 1,733
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Flow hood help
#20616180 - 09/25/14 09:51 AM (10 years, 3 months ago) |
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So I'm in the market for hood parts and ran across this filter for $60. It seems incredibly cheap for a 99.99% efficiency. Will someone tell me if its a suitable starting point and why or why not so I can be a bit more educated.
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
Last seen: 8 years, 7 months
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Re: Flow hood help [Re: Ghatti]
#20616189 - 09/25/14 09:55 AM (10 years, 3 months ago) |
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We're is it? And the ideal filter filters down to .03 microns. Which is better than 99.99 efficiency I believe.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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Ghatti
Totally not a Federal Agent

Registered: 06/23/14
Posts: 1,733
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Re: Flow hood help [Re: starsky7]
#20616250 - 09/25/14 10:14 AM (10 years, 3 months ago) |
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Hepa is defined as 99.97 down to 3 Microns I believe.
This is rated as 99.992%
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
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Re: Flow hood help [Re: Ghatti]
#20616297 - 09/25/14 10:24 AM (10 years, 3 months ago) |
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Sweet, grab me one while you're there. where are you btw.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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Ghatti
Totally not a Federal Agent

Registered: 06/23/14
Posts: 1,733
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Re: Flow hood help [Re: starsky7]
#20616319 - 09/25/14 10:30 AM (10 years, 3 months ago) |
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Nvm. It's eBay and for pick up only. Still like to know if I'm on the right track.
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Sockadin



Registered: 01/03/10
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Re: Flow hood help [Re: Ghatti]
#20616332 - 09/25/14 10:33 AM (10 years, 3 months ago) |
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Yes that one is good.
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
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Re: Flow hood help [Re: Sockadin]
#20616342 - 09/25/14 10:36 AM (10 years, 3 months ago) |
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I'm looking at IQAir purifiers that filter particles as small as .003 microns in 600sq rooms (filters 2x/hr). 100x more efficient than a standard hepa filter. WTF?! I'm getting one of these things.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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MushroomWizard420
mycological magician



Registered: 04/03/14
Posts: 307
Loc: space
Last seen: 2 years, 8 months
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Re: Flow hood help [Re: Sockadin]
#20616348 - 09/25/14 10:37 AM (10 years, 3 months ago) |
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H14 is 99.97% U14 is 99.99% both are fine for flow hood work, but obviously the 99.99 is ideal. the static pressure is 1.3", which will work if you do your math properly for the fan, but it's a little higher than most i've seen. i'd say it's just fine overall.
-------------------- "And on the last day, God purchased RogerRabbit's DVD set, and learned to grow mushrooms. And it was good."
-Shroomesis 4:20

MushroomWizard420
The spirit of the forest watches over his children as they grow...
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MushroomWizard420
mycological magician



Registered: 04/03/14
Posts: 307
Loc: space
Last seen: 2 years, 8 months
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Re: Flow hood help [Re: starsky7]
#20616351 - 09/25/14 10:38 AM (10 years, 3 months ago) |
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Quote:
starsky7 said: I'm looking at IQAir purifiers that filter particles as small as .003 microns in 600sq rooms (filters 2x/hr). 100x more efficient than a standard hepa filter. WTF?! I'm getting one of these things.
how big is the surface of the filter and can you actually make a hood with it?
-------------------- "And on the last day, God purchased RogerRabbit's DVD set, and learned to grow mushrooms. And it was good."
-Shroomesis 4:20

MushroomWizard420
The spirit of the forest watches over his children as they grow...
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Ghatti
Totally not a Federal Agent

Registered: 06/23/14
Posts: 1,733
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Re: Flow hood help [Re: Ghatti]
#20616361 - 09/25/14 10:41 AM (10 years, 3 months ago) |
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I'm actually quite lost and don't know what I'm looking for aside from size. I see ones with 5in depth and ones with 12in depth.
As far as resistance, penetration, and rated cfm what am I looking for really? I'm under the impression I can get a fan to match pretty much whatever but I'd still like to keep it pretty cheap.
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starsky7
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Registered: 09/12/14
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Loc: Eastern coast, USA
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No, its just an air purifier, I'm not positive you would even want to dissasemble the thing. it's almost a grand. But I'd love one of these for my home, along with a laminar flow hood, cuz the specs on that thing make me feel like it would be like breathing the air of the gods.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
Last seen: 8 years, 7 months
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Re: Flow hood help [Re: Ghatti]
#20616375 - 09/25/14 10:45 AM (10 years, 3 months ago) |
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Quote:
Ghatti said: I'm actually quite lost and don't know what I'm looking for aside from size. I see ones with 5in depth and ones with 12in depth.
As far as resistance, penetration, and rated cfm what am I looking for really? I'm under the impression I can get a fan to match pretty much whatever but I'd still like to keep it pretty cheap.
Lol, I'm pretty sure you're looking for the 12in depth (BAHAHAHA) but seriously 5in is fine I'm sure so long as it filters down to .3... I'm looking at a book on building flow hoods for mycology right meow. or at least a book with a section about building flow hoods in it.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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Ghatti
Totally not a Federal Agent

Registered: 06/23/14
Posts: 1,733
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Re: Flow hood help [Re: starsky7]
#20616380 - 09/25/14 10:46 AM (10 years, 3 months ago) |
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I dont so much think the depth matters but the resistance. But I don't know exactly how it plays in.
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
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Re: Flow hood help [Re: Ghatti]
#20616398 - 09/25/14 10:51 AM (10 years, 3 months ago) |
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FILTER SIZE: BLOWER SIZE: 12"x24" 400-500 cfm 24"X24" 800-100 CFM 36"X24" 1200-1400 CFM
These ratings assume .8 static pressure HEPA .2 SP prefilter
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
Last seen: 8 years, 7 months
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Re: Flow hood help [Re: starsky7]
#20616404 - 09/25/14 10:53 AM (10 years, 3 months ago) |
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The filter should be about 8" deep, but you can find ones just as efficient at around 5-6"
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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Ghatti
Totally not a Federal Agent

Registered: 06/23/14
Posts: 1,733
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Re: Flow hood help [Re: starsky7]
#20616422 - 09/25/14 10:57 AM (10 years, 3 months ago) |
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Or this one? It's thin and I still don't get exactly what I'm looking for for laminar flow.
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
Last seen: 8 years, 7 months
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Re: Flow hood help [Re: Ghatti]
#20616448 - 09/25/14 11:03 AM (10 years, 3 months ago) |
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That looks gravy my dude, Now you just gotta find a blower for it. what are the dimensions.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
Last seen: 8 years, 7 months
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Re: Flow hood help [Re: starsky7]
#20616452 - 09/25/14 11:04 AM (10 years, 3 months ago) |
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AND WHERE ARE YOU , lol, i need to go get one too.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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starsky7
The Sponge



Registered: 09/12/14
Posts: 860
Loc: Eastern coast, USA
Last seen: 8 years, 7 months
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Re: Flow hood help [Re: Ghatti]
#20616457 - 09/25/14 11:06 AM (10 years, 3 months ago) |
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Quote:
Ghatti said: Or this one? It's thin and I still don't get exactly what I'm looking for for laminar flow.

This company makes filters for clean rooms, I think you're gonna be just fine brudduh.
-------------------- "In nature, there are neither rewards nor punishments, there are consequences" - Robert Greene Ingersoll
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MushroomWizard420
mycological magician



Registered: 04/03/14
Posts: 307
Loc: space
Last seen: 2 years, 8 months
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Re: Flow hood help [Re: Ghatti]
#20616469 - 09/25/14 11:08 AM (10 years, 3 months ago) |
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Quote:
Ghatti said: I'm actually quite lost and don't know what I'm looking for aside from size. I see ones with 5in depth and ones with 12in depth.
As far as resistance, penetration, and rated cfm what am I looking for really? I'm under the impression I can get a fan to match pretty much whatever but I'd still like to keep it pretty cheap.
that's right for the most part. but before you purchase it you should do the math and check around just in case. i'm gonna list the math for my filter as an example..
find the surface area of the filter in square feet: 2 * 2 = 4 multiply that by 100 to find the approximate cfm your fan will need to produce 4 * 100 = 400 (CFM) it's recommended to add 10-20% to the theoretical required cfm because there tons of extra variables 400 * 1.1 = 440 400 * 1.2 = 480 then you have your required cfm range that you need need to look for 440-480 CFM then just keep in mind that fans produce different cfm at different static pressures, and that the pre filter you'll be placing in front of your filter has roughly 0.2" static pressure. i need a fan that produces between 440 and 480 CFM at 1.0" static pressure
YOU need a fan that produces the surface area of your filter (in feet), multiplied by 100, multiplied by 1.1 to 1.2. but you need to find its graph/table to make sure it produces that CFM at 1.5" static pressure (1.3" for the filter and 0.2" for the pre filter)
hope that made some sense... after you've done your math send me your numbers and i'll double check it
-------------------- "And on the last day, God purchased RogerRabbit's DVD set, and learned to grow mushrooms. And it was good."
-Shroomesis 4:20

MushroomWizard420
The spirit of the forest watches over his children as they grow...
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