Equipment category · HCAI/OSHPD OSP

Exhaust/Smoke Control Fans — OSP Preapprovals

All 11 HCAI/OSHPD Special Seismic Certification preapprovals issued for Exhaust/Smoke Control Fans. 9 active, 2 expired, across 7 manufacturers. Source data from HCAI · updated 2026-04-21.

Filter:All Active only Expired onlyShowing 2 of 11

Manufacturers with Exhaust/Smoke Control Fans OSPs

ACME Engineering & Manufacturing Corporation
ENERVEX Inc.
Greenheck
Greenheck Fan Corporation
Loren Cook
Loren Cook Company
Twin City Fan

OSP #	Manufacturer	Expires
OSP-0223	Greenheck	Expired	Details →
OSP-0395	Twin City Fan	Expired	Details →

About Exhaust/Smoke Control Fans OSP preapprovals

Listed records are sourced from the official HCAI OSP page. Always verify status, conditions, and expiration with HCAI before specifying a component. Need PE/SE stamped anchorage calculations for Exhaust/Smoke Control Fans on a California hospital project? Talk to a Panache engineer.

Back to OSP database