Patent ID: 7138008

Claim:
An air filtration assembly for use with a fuel cell and air moving equipment, the assembly comprising: (a) a first filter assembly comprising: (i) an inlet and an outlet, the inlet configured to receive dirty air into the first filter assembly, and the outlet configured to deliver clean air from the first filter assembly; (ii) a particulate filter constructed and arranged to remove particulate contaminants from the dirty air; and (iii) a chemical filter arranged to remove chemical contaminants from the dirty air; the first filter assembly providing sound suppression of at least 3 dB at one meter; (b) air moving equipment having an inlet and an outlet and operable to move air from its inlet to its outlet, the inlet of the air moving equipment being connected to receive air from the outlet of the first filter assembly; and (c) a fuel cell having an oxidant inlet connected to receive air from the outlet of the air moving equipment.