Wash. Admin. Code § 51-11R-20223
Current through Register Vol. 24-21, November 1, 2024
WHOLE HOUSE MECHANICAL VENTILATION SYSTEM. An exhaust system, supply system, or combination thereof that is designed to mechanically exchange indoor air with outdoor air when operating continuously or through a programmed intermittent schedule to satisfy the whole house ventilation rates.
Wash. Admin. Code § 51-11R-20223
Statutory Authority: RCW 19.27A.020, 19.27A.045 and chapters 19.27 and 34.05 RCW. 13-04-055, § 51-11R-20223, filed 2/1/13, effective 7/1/13.