NBC Air Filtration system and Shelter info

NBC Air Filtration system and Shelter info

Postby wesurvive » Sun Oct 10, 2010 3:36 am

Here are a few links to NBC shelters and air filtration systems.
http://www.northwestsheltersystems.com/

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http://www.northwestsheltersystems.com/ ... ystems.php

The contaminated air (red), sucked in by the ventilator(1), passes the valve (2) and the NBC-filter (3) Inside the NBC-filter the air flows through different filters (activated carbon, HEPA-filter), gets cleaned and is breathable again (blue).

1. Ventilation unit
2. Shelter valve (explosion-protection valve with pre-filter)
3. NBC - filter

Now filters can be costly, but thanks to some innovative people, they have made theirs for a fraction of the price.

Also, a nice idea for a safe room (small shelter or NBC shelter) to help keep any bad air out and good air in. At a very cheap price.

Now, What I would do is put several of the NATO gas mask filters in series in a PVC pipe that would fit them snug, thus this would last for about a week, a quick change over to another PVC pipe with another NATO gas mask canisters in series would take up the second week or even longer. Not a bad idea.

http://www.alpharubicon.com/basicnbc/pumpairfilter.htm

Remember, soldiers will wear these masks with the same canister for weeks if needed, but that is only one person breathing. So say 5 canisters in a row would surely work for a week with 4 people. Granted, a bigger pump may be needed, but those filters are not that restrictive and should work with the same pump listed above.

Here is another one, the 5 gallon bucket air filter.
http://www.alpharubicon.com/basicnbc/5g ... rrequa.htm

Materials:
# 1 5-gallon Bucket ($1.99)
# 1 n688 Bathroom Exhaust fan (these fans I believe come up to 160CFM) ($ 10.99)
# 1 Roll of Aluminum tape ($ 5.99)
# 4-5 Cheap Furnace Filters 20”x25”x1” ($.49 each)
# 1 Big Blue 20”x25”x1” ($ 13.99)
# Couple Hepa Filters of Choice.
# Charcoal Pre filters
# 1 surplus computer Power cable.

Some other ideas to add to your NBC filter plan using a 5 gallon bucket.
http://www.alpharubicon.com/basicnbc/fiacaptthoth.htm

Nice about this is it takes it down to .1 microns. That is just as good as a gas mask filter.
And of course the nice activated carbon to add in for extra good smell and as a good air cleaner.

Blast proof ventilation pipes for air filtration system

http://americanbombshelter.com/ASR-blas ... -ducts.htm


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Another cheap way to build an NBC air filtration system, the more advanced with blast valves.
Cheaper, far cheaper than having to buy it.

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This was found in this free book here on NBC shelters:
http://www.ki4u.com/free_book/
You Must Survive. So prepare for it.
wesurvive
 
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