Air filter assembly for low temperature catalytic processes

The present disclosure is related to air filtering systems for low temperature catalytic processes. In particular, the disclosure is directed to air filters for use with a fuel cell apparatus. An air filter assembly for removing particulate contaminants, chemical contaminants, or both, from an incoming dirty air stream. The resulting filtered or clean air is supplied to catalytic equipment, such as a fuel cell. The filter assembly can include a physical filter portion for removing physical or particulate contaminants, a chemical filter portion for removing chemical contaminants, or can have both portions.