Exhaust.
Exhaust from ventilation systems must discharge in such a manner that the contaminated air being exhausted will not present a health hazard to any workman or reenter buildings in harmful amounts.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 19-01-094, § 296-62-13620, filed 12/18/18, effective 1/18/19; WSR 07-23-072, § 296-62-13620, filed 11/19/07, effective 1/2/08.]