Wholesale Distributor and Manufacturer's Representative of Heating, Ventilation & Air Conditioning (HVAC) Systems. Our products include Commercial Exhaust Fans, Industrial Ventilation Systems and Residential Air Conditioning. We supply Mechanical Contractors, Residential Contractors, Engineers, and Architects in Oregon and Southwest Washington with a large variety of quality HVAC products and information. Johnson Air Products has been in business since 1948, offering over 75 years of experience in the HVAC industry.