Air Commodities, founded in 1985, is one of the leading vendors of heating, ventilation, air distribution and filtration equipment in the Pacific Northwest. The company provides air filter kits, fans, blowers, ventilators, diffusers, grilles, dampers and manometers. Its services include underfloor and displacement ventilation, installation and service of variable volume boxes, fire and smoke dampers, fabric air dispersion systems and fans and overhead air distribution products. It represents various manufacturers such as Ruskin, Steril-Aire, Titus and Loren Cook. Air Commodities has offices in Seattle and Portland and Medford, Ore.