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M8A3 Filtration System 12-cfm CBRN Filtration SystemNSN: 4240-00-853-3201
Application Statement: Features:
The M8A3 CBRN filtration system is the smallest and least expensive form of collection protection used by the US Military today. In the M8A3, a single filter unit supplies filtered air via hoses to vehicle crewmembers, providing individuals with protection against CBRN agents while maintaining the flow of fresh filtered air to the mask. The forced air into the mask converts the mask from a negative pressure protection into a positive pressure protection. The system provides enough air for breathing as well as defogging the mask lenses and compensating for irregular fitting of the mask over the user face. The M8A3 filter system consists of M2A2 air purifier, hose assemblies, and installation hardware. The M2A2, the main filter unit, contains the blower, dust separator, and gas and particulate filters. In the M8A3 system, the M2A2 air purifier is mounted inside the vehicle. Contaminated is air is pulled into the unit by a centrifugal fan and then passed through a dust separator, which removes coarse particles from the air stream and discharge them through openings in the back of the system. The air then passes through an M13 particulate filter that removes toxic particles and aerosols at an efficiency of 99.97% at .3 microns and an M12A2 gas filter that removes gaseous contaminants from the air stream. The purified air is then distributed individually to vehicle crew air masks via air supply hoses. The M8A3 is used in vehicles that cannot be pressurized or that its operational mode requires open doors such as certain classes of tactical vehicle and ambulance or an ambulance.
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20.4 m3/h 
