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#100386 - 07/21/07 04:50 PM Greeting's!........Overpressure Filter System?
krell75460 Offline
Journeyman

Registered: 05/07/06
Posts: 63
Loc: Mesquite Texas
Gentlemen,

Pardon my long abscence.....I have been battling several health issues, as well as some family issues.
But I could use your help....I have a small portable Blower, that I want to turn into a "Positive, Overpressure Air System" for my home, using HEPA Filter's, in the event that the wife and I are forced to "Shelter In Place"!.
I have seen plans on the Web a long time ago, but have not been able to locate them lately.....can anyone help?

Krell confused

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#100392 - 07/21/07 07:02 PM Re: Greeting's!........Overpressure Filter System? [Re: krell75460]
Tjin Offline
Pooh-Bah

Registered: 04/08/02
Posts: 1821
HEPA filters are just for particials, not fumes or vapors. So you won't be safe from everything. Wrong filters on a blower, can cause a increase in contamination INSIDE. Also most plans i have seen, just look too crappy for mine tast. Many have very little information about making those improvsed blowers and there filter connection vapor and fume tight. Which can cause leaks.

Also have you done a risk assesment? A terrorist release or a accidential release are always on certain places, terrorists want soft targets, with lots of victims. So they target big city's, public transport, etc. Accidents with chemicals plants are transport are only a problem when living close to a plant or hazardous materials route.

Most people are beter of in investing there money in a safer car, which will more likely safe there life's.
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#100732 - 07/25/07 01:16 PM Re: Greeting's!........Overpressure Filter System? [Re: krell75460]
OldBaldGuy Offline
Geezer

Registered: 09/30/01
Posts: 5695
Loc: Former AFB in CA, recouping fr...
This is a little old, but might help you a little bit, the last one in particular. Link ...
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OBG

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