Safe rooms and other such spaces and air processing systems for such safe rooms and spaces

摘要

In one example, an air processing system comprises an inlet portion defining a first inlet to receive internal air from a room and a second inlet to receive air external to the room. An air decontamination portion is downstream of the inlet portion. A first outlet portion to the room is downstream of the air decontamination portion. A HEGA filter is downstream of the first outlet. A first damper is downstream of the air decontamination portion and upstream of the HEGA filter to selectively direct air to the first outlet and the gas absorber. A second damper and a second outlet are downstream of the HEGA filter. The first and second dampers are configured and positionable to selectively seal an upstream side and a downstream side of the gas absorber, respectively, when not in use. Safe rooms including the system are also disclosed.