The facility shall ensure that each ventilation system serving an operating room, delivery room, nursery, isolation room, and laboratory sterile room is equipped with a minimum of two filter beds. Filter bed number one must be located upstream of the conditioning equipment and must have a minimum efficiency of thirty percent. Filter bed number two must be located downstream of the conditioning equipment and must have a minimum efficiency of ninety percent. Central systems using one hundred percent outdoor air and serving other than sensitive areas must be provided with filters rated at eighty percent efficiency. These filter efficiencies must be warranted by the manufacturer and shall be based on the 2017 edition of the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE) Standard 52.2 dust spot test method with atmospheric dust. The exhausts from all laboratory hoods in which infectious or radioactive materials are processed must be equipped with filters with a ninety-nine percent efficiency. Filter frames must be durable and must provide an airtight fit with the enclosing ductwork. All joints between filter segments and the enclosing ductwork must have a positive seal against air leakage.

Source: SL 1975, ch 16, § 1; 6 SDR 93, effective July 1, 1980; 14 SDR 81, effective December 10, 1987; 22 SDR 70, effective November 19, 1995; transferred from § 44:04:14:19 , 42 SDR 51, effective October 13, 2015 ; 50 SDR 62, effective November 27, 2023 .

General Authority: SDCL 34-12-13 (2), (3)(14).

Law Implemented: SDCL 34-12-13 .

Prior versions effective: 2015-10-13.