South Dakota Administrative Rules
Title 44 - Department of Health
Article 44:80 - Residential hospice facilities
Chapter 44:80:10 - Construction standards
Section 44:80:10:14 - Ventilating systems

(1) For all other occupied areas, the facility shall be able to maintain a minimum temperature of 75 degrees Fahrenheit (23.9 degrees centigrade) at winter design conditions with a minimum of at least two total air changes an hour. All air supply and air exhaust systems shall be mechanically operated. All fans serving exhaust systems shall be located at the discharge end of the system. Each mechanical ventilation systems shall be designed and balanced to provide make-up air and safe pressure relationships between adjacent areas to preclude the spread of infections and assure the health of the occupants. A corridor may not be used to supply air to or exhaust air from any room, except that exhaust air from corridors may be used to ventilate bathrooms, toilet rooms, or janitor's closets opening directly on corridors. Continuous mechanical exhaust ventilation shall be provided in all soiled areas, wet areas, and storage rooms. In unoccupied service areas, ventilation may be reduced or discontinued when the health and comfort of the occupants are not compromised.

(2) Each cooking appliances, other than microwave ovens, shall be provided with exhaust ventilation to the exterior of the building to remove cooking odors, heat, and moisture.

(3) Each vehicle parking garage shall be provided with carbon monoxide detection to activate exhaust ventilation of six air changes each hour or to open the garage door if the area of the garage is under 1000 square feet. A sign shall be posted at the front of each parking space advising the driver to shut off the engine.

(4) Each crawl spaces shall be provided with mechanical ventilation at least one half air changes each day or be provided with open perimeter venting as required by the International Building Code.

A ventilation system using a recirculated central air system shall be equipped with a minimum of 30 percent effective filters. These filter efficiencies shall be warranted by the manufacturer and shall be based on the ASHRAE 52.2, 2007 edition, American Society of Heating, Refrigeration, and Air Conditioning Engineers dust spot test method with atmospheric dust. Each filter frame shall be durable and carefully dimensioned and shall provide a tight fit with the enclosing duct work.