Heating. The center shall have a properly maintained and operating central heating system that is capable of maintaining 75°F throughout the participants' section of the building. The heating system shall comply with NFPA 101, Life Safety Code, which is incorporated by reference in COMAR 29.06.01.06, and all applicable State and local codes. A center may not use space heaters or portable heaters unless approved by the State or local fire authority. The center shall ensure that all exposed heating pipes, hot water pipes, and radiators are covered or protected to prevent exposure to participants, staff, and visitors. Air Conditioning. The center shall have a properly maintained and operating air conditioning system capable of maintaining a maximum temperature of 81°F throughout the participants' section of the building. Ventilation. Existing Centers. The center shall ensure that all rooms and areas have sufficient ventilation to prevent excessive heat, steam, condensation, smoke, or other noxious odors. The center shall provide forced mechanical exhaust or an approved equivalent for: All bathing compartments; Toilet rooms; Designated smoking rooms, if applicable; and Other rooms, as determined by the Department. New Centers. In addition to the requirements in §C(1) of this regulation, new centers shall meet the following minimum ventilation rates: