South Carolina Code of Regulations
Chapter 61 - DEPARTMENT OF HEALTH AND ENVIRONMENTAL CONTROL
Subchapter 61-13 - Standards for Licensing Habilitation Centers for Persons with Intellectual Disability or Persons with Related Conditions
Sec2 61-13.2400 - HEATING, VENTILATION, AND AIR CONDITIONING (HVAC) (II)

A. A facility shall not install a HVAC supply or return grille within three (3) feet of a smoke detector. (I)

B. A facility shall not install HVAC grilles in floors.

C. Return air ducts shall be filtered and maintained to prevent the entrance of dust, dirt, and other contaminating materials. The system shall not discharge in a manner that would be an irritant to clients, staff, or visitors.

D. A facility shall have each shower, bath, and restroom with either operable windows or have approved mechanical ventilation.