True NBC filtration ventilation system
A shelter is only as good as its air filtration system. This Air Filter System is a Nuclear, Biological, and Chemical (NBC) air filter that will enable you to create either a positive pressure safe room, fallout shelter, bomb shelter or a negative pressure isolation room. It will operate on regular 110v line power or will automatically switch to battery backup. An optional ( shown ) hand powered manual bellows can be ordered for use in a long term electrical outage. It will handle up to 12 Adults. Output is 100 cubic meters per hour.
This Air Filter System can be mounted in a residential safe room with both backup systems in place: a user supplied battery for short term power outages & the optional hand operated bellows for longer power outages – note the 36 inch yardstick to the right for size reference. The air is drawn through the flex hose, into the bottom end bell, then through the filter bank in the middle and out the top end bell to overpressure the shelter or safe room.
How does it work?The filtration unit draws in unfiltered air from outside your shelter or safe room through an intake vent that can be located in a wall, window, or door. The air passes through a bank of up to 6 filters certified for the collection of nuclear, biological, and chemical (NBC or CBRN) toxins or natural contaminants and allergens such as dust or pollen at 99.97% efficient down to 0.3 microns. The NBC filtration system is comprised of five separate filter media’s: (1) a gross filter, (2) a pre-filter, (3) a HEPA particulate filter, (4) a gas adsorption cell, and (5) a final carbon fines filter. Filters are easily changed. Spares are available.
Then, the safe, breathable air is blown into your protected space with just the right force to produce a slight overpressure in the room. This overpressure keeps toxins from migrating into your safe room or shelter from any other entry source. This is the same technology used by the US military to keep soldiers alive in a CBRN environment.
The Air Filter System can set on the floor or mounted vertically on a wall. You can order many optional accessories such as a hand-operated bellows backup, a blast valve, and a warfare gas absorber which is filled with military grade activated carbon that adsorbs gases. What really sets this air filtration unit apart from other NBC air filtration systems are the redundant backup systems.
Order # 42200 $2695.00 + s&h ( add # 42220 for hand operation )
Typical air filtration schematic of a normal installation