This company's line of "HermanNelson" unit ventilators are made for use in classrooms. Available in ceiling-mounted or floor-mounted versions, the units are sized from 750- to 2,000-cfm. A variety of colors, cabinets and accessories are available. Optional equipment includes a factory-installed Microtech DDC unit controller. Floors can also be equipped with DraftStop to prevent downdrafts. Floor mounted units are available as a water source heat pump, an air conditioner or as an air to air heat pump.

McQuay International, 13600 Industrial Park Blvd., Minneapolis, MN 55441; 800/432-1342;