This booklet outlines the company¿s Thermopak energy recovery systems, which is a self-contained air-handling unit. Included are each model¿s dimensions, total static pressure/fan motor hp information, thermal performance, and general specifications. The company says that its products comply with ASHRAE Standard Ventilation for Acceptable Indoor Air Quality. Design features of the systems include passive energy recovery, bi-directional heat transfer, odor control, and traversing defrost, to name a few. ¿ Circul-Aire Montreal, Quebec, Canada