Section R. 325.45297 - Heating, ventilation, and air conditioningRule 297.
(1) Heating, ventilation, and air conditioning systems must be designed, installed, operated and maintained to meet the requirements of the American Society for Heating Refrigerating and Air Conditioning Engineers (ASHRAE) Standard 170 - 2017 Ventilation of Health Care Facilities. This standard is available as described in R 325.45263.(2) Exhaust ventilation shall be designed as central systems with the fan at the building exterior and at least 10 feet from all doors, operable windows, and domestic outside air intakes.Mich. Admin. Code R. 325.45297
2020 MR 4, Eff. 2/21/2020