5003.8.5.2 Ventilation.
FC § 5003.8.5.2
The ventilation system for exhausted enclosures shall be designed to operate at a negative pressure relative to the surrounding area. Ventilation systems used for highly toxic and toxic gases shall additionally comply with the requirements of FC 6004.1.3. The ventilation system shall be installed in accordance with the construction codes, including the Mechanical Code.













