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Amazon Shop: HEPA Filter, Laminar Flow Hood

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OfflineHafrican
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Registered: 01/31/03
Posts: 105
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pos. pressure glove box question
    #1281765 - 02/05/03 01:34 PM (15 years, 3 months ago)

So, if I am trying to build a positive pressure glove box and want to wire a computer fan with a HEPA filter to an extension cord, how would i go about the wiring exactly, assuming a 3 pin or 4 pin fan -- are there 2 hots, 1 neutral? 1 hot, 1 neutral, 1 ground? I have wired some switches/conduit before, but I have only hooked up my fan to the power supply :smile: Thanks people. 


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InvisiblePrisoner#1
Even Dumber ThanAdvertized!
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Registered: 01/22/03
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Re: pos. pressure glove box question [Re: Hafrican]
    #1283007 - 02/05/03 08:14 PM (15 years, 3 months ago)

a computer fan is a 12v DC system....you have a 2 wire hook up unless it's a variable speed fan....if using a Computer power supply, the yellow lead should go to the red wire on the fan and a black lead to the black wire on the fan.

Prisoner#1


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Invisibledeanofmean
mycophagous

Registered: 12/07/02
Posts: 2,017
Loc: PNW
Re: pos. pressure glove box question [Re: Hafrican]
    #1283050 - 02/05/03 08:44 PM (15 years, 3 months ago)

go to goodwill, and look for a power supply with 12v DC output .the red wire goes to +, and the black wire goes to - . if you have a yellow or orange wire on the fan, it's for 5v .
but, why not use an aquarium pump with an inline filter, then you don't have to f**k with wireing it . :smirk: 


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OfflineBikeCourier
Bikecourier

Registered: 05/17/01
Posts: 40
Loc: Canada
Last seen: 7 years, 1 month
Re: pos. pressure glove box question [Re: Hafrican]
    #1283269 - 02/05/03 11:39 PM (15 years, 3 months ago)

A small computer fan will probably NOT supply enough air pressure to your HEPA filter. You need a fan with higher output to supply positive pressure to your glove box (or laminar flow hood that you are proposing).


--------------------
tanstaafl (or maybe there is)


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Amazon Shop: HEPA Filter, Laminar Flow Hood

Mushrooms, Mycology and Psychedelics >> Mushroom Cultivation

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