• Make sure each room with an exhaust hood has a source of outside air that:
– Enters the room in a way that will not interfere with the function of the hood
– Replaces at least ninety percent of the air taken in through the hood.
[Statutory Authority: RCW 49.17.010, [49.17].040, and[49.17].050 . 02-15-102, § 296-835-11020, filed 7/17/02, effective 10/1/02.]