South Dakota Administrative Rules › Title 44 - Department of Health › Article 44:75 - Hospital, specialized Hospital critical access Hospital, and rural emergency Hospital facilities › Chapter 44:75:13 - Construction Standards › Section 44:75:13:23 - Ventilating systems

Current through Register Vol. 51, page 10, July 15, 2024
The ventilating systems shall maintain temperatures, minimum
				  air changes of outdoor air per hour, minimum total air changes, and relative
				  humidities as follows:
(1) Operating
				rooms sixty-eight to seventy-three degrees Fahrenheit or twenty to 22.8 degrees
				centigrade, three outdoor, twenty total, and twenty to sixty percent
				humidity;
(2) Delivery rooms
				sixty-eight to seventy-three degrees Fahrenheit or twenty to 22.8 degrees
				centigrade, three outdoor, fifteen total, and twenty to sixty percent
				humidity;
(3) Recovery rooms - at
				least seventy degrees Fahrenheit or 21.1 degrees centigrade, two outdoor, six
				total, and twenty to sixty percent humidity;
(4) Nursery rooms - at least seventy-five
				degrees Fahrenheit or 23.9 degrees centigrade, two outdoor, six total, and
				twenty to sixty percent humidity; and
(5) Intensive care rooms seventy to
				seventy-five degrees Fahrenheit or 21.1 to 23.9 degrees centigrade, two
				outdoor, six total, and twenty to sixty percent humidity.
For all other occupied areas, the facility shall be able to
				  maintain a minimum temperature of seventy-five degrees Fahrenheit or 23.9
				  degrees centigrade and at least fifteen percent humidity 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. Outdoor
				  ventilation air intakes, other than for individual room units, shall be located
				  as far away as practicable but not less than twenty-five feet or 7.62 meters
				  from plumbing vent stacks and the exhausts from any ventilating system or
				  combustion equipment. The bottom of outdoor intakes serving central air systems
				  shall be located as high as possible but not less than six feet or 1.83 meters
				  above the ground level or, if installed through the roof, three feet or 0.91
				  meters above roof level. The 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. Room supply air inlets, recirculation, and exhaust air outlets
				  shall be located with the grill or diffuser opening not less than three inches
				  or 0.08 meters above the floor. Corridors 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.
Laboratories shall be ventilated at a rate of six total air
				  changes an hour. All ventilation air from the laboratory shall be directly
				  exhausted to the outside. If this ventilation rate does not provide the air
				  required to ventilate fume hoods and safety cabinets, additional air shall be
				  provided. A filter with ninety percent efficiency shall be installed in the air
				  supply system at its entrance to the media transfer room. Hoods in which highly
				  radioactive materials are processed shall have a face velocity of one hundred
				  fifty feet per minute or 0.76 meters a second, have a high-efficiency (99.97%)
				  filter, and each hood shall have an independent exhaust system with the fan
				  installed at the discharge point of the system. Hoods used for processing
				  infectious materials shall have a face velocity of seventy-five feet a minute
				  or 0.38 meters a second.
Cooking appliances, other than microwave ovens, must be
				  provided with exhaust ventilation to the exterior of the building to remove
				  cooking odors, heat, and moisture.
Each vehicle parking garage must 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 one thousand
				  square feet. A sign shall be posted at the front of each parking space advising
				  the driver to shut off the engine.
Crawl spaces must 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, 2012 edition,
				  §1203.
General Authority:
SDCL
					 34-12-13(1)(3)(4).
Law Implemented:
SDCL
					 34-12-13(1)(3)(4).
NFPA 255, 2006 edition, Standard Method of Test for Surface
					 Burning Characteristics of Building Materials. Copies may be obtained at
https://www.nfpa.org/Codes-and-Standards/All-Codes-and-Standards/List-of-Codes-and-Standards
.
					 Cost: $60.50.