Links for the PuriFresh Energy Recovery Ventilator.

Useful Links

American Lung Association
The Environmental Protection Agency
Airxchange, Inc.: Manufacturer of the Energy Transfer Sections used in the PuriFresh^® Energy Recovery Ventilator. Learn more about Energy Recovery and its benefits.
American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE): Learn about ventilation standards for commercial and residential buildings.