All bathrooms, restrooms, locker rooms, toilet rooms, and laundry rooms shall be adequately ventilated so that excessive moisture is removed from the room. Acceptable ventilation includes mechanical exhaust ventilation, a recirculating vent, or screened windows, except as specified in section 813.2.
Section 813.1 does not apply to rooms within a massage establishment or health spa facility that are intentionally humid, such as a steam room.
Each system for heating, cooling or ventilation shall be properly maintained and operational at all times when the rooms are occupied.
All massage therapy rooms, bathrooms, restrooms, locker rooms, and toilet rooms shall be capable of being maintained at a temperature between sixty-eight degrees Fahrenheit (68° F) (twenty degrees Celsius (20° C)) and eighty degrees Fahrenheit (80° F) (twenty-seven degrees Celsius (27° C)) while being used by customers, unless intentionally warmer for therapeutic purposes, such as in a sauna.
The use of portable space heaters is prohibited.
D.C. Mun. Regs. tit. 25, r. 25-D813