Hawaii Administrative Rules
Title 11 - DEPARTMENT OF HEALTH
Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS
Chapter 39 - AIR CONDITIONING AND VENTILATING
Section 11-39-8 - Outdoor air supply
Current through February, 2024
(a) The outdoor air shall be taken from a clean, uncontaminated source.
(b) Outdoor air shall be ducted to the air conditioning or ventilating apparatus, or mixed with recirculating air in a plenum. Wherever the outdoor air duct is not connected to the apparatus, the mixing plenum shall be properly engineered and free from air contamination sources.
(c) All outdoor air intakes shall be screened and shall be located as far as possible from stacks and vent outlets, but this distance shall in no case be less than twelve feet (three and five-tenths metres). Domestic clothes dryer vents shall not be considered as outlets for this purpose. The distance in each case shall be sufficient to prevent the discharged air from entering the outdoor air intake.
(d) The outdoor air from air conditioning systems shall be supplied through a conditioning apparatus directly to each given space during its occupied hours, and the quantity shall conform to the requirements of ASHRAE Standard 62. There shall be an exception to this for occupancies such as hotel guestrooms, apartments, or dormitories where air conditioning is provided within separate tenancies of a multi-room housing type facility, and where openable window air ratio to floor area is provided in accordance with administrative rules and building codes, no outdoor air intake shall be required. This exception should not apply to nursing homes, hospitals, or similar medical facilities.