A grow light cooling and grow room odor pollution control system that includes an air plenum with a plurality of air inlets； a plurality of air ducts connecting each air inlet to at least one grow light housing, at least one air outlet； an air pump mounted in the air plenum, and at least one filter operatively coupled to the air pump and disposed between all of the air inlets and the air outlet, such that the air pump pulls hot and odorous air from nearby grow light housings into the air plenum through the air inlets, through the air filter, and then out from the plenum for dissipation in the outside atmosphere or for use in heating a structure.
