Okla. Admin. Code § 310:355-11-2 - Negative air pressure requirements with changing occupancy and activity
(a) Exhaust from and ventilation to a smoking
room can be reduced with reduced occupancy, as permitted by local mechanical
codes, providing that sufficient negative air pressure is maintained to satisfy
OAC
310:355-13-1.
(b) As activity in a smoking room increases,
causing more frequent opening and closing of the doors, greater negative air
pressure shall be utilized, if needed, to contain smoke within the smoking room
and prevent its recirculation to nonsmoking areas.
Notes
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