Designed to provide a thermal management system for enclosures where the electronics can operate at temperatures slightly above ambient, these filter fan packages include both intake and exhaust grille kits. Positioned near the enclosure's bottom, the intake kit is used to induce cool ambient air into the enclosure without admitting air borne particles. The exhaust kit is located near the enclosure's top and is used to provide a path for heat-laden air to exit the enclosure. Air flows for the packages range from 105 to 235 cfm.