See also:
Greenheck
greenheck.com
Manufactures fans and ventilators, centrifugal fans, vane axial fans, dampers, louvers, kitchen ventilation systems, energy recovery ventilators and make up air units for the commercial and industrial market.
Captive-Aire Systems Inc.
captiveair.com
Commercial and industrial ventilation equipment.
Premium Air Systems
premiumair.net
Manufacturer of products for the restaurant kitchen including make-up air units, custom designed hoods, exhaust fans. Complete design and installation.