N.Y. Comp. Codes R. & Regs. tit. 14, § 77.5
(b) Heating, ventilating and air conditioning systems shall be maintained and operated in a manner which will prevent the spread of infection.
(2) Air filtration equipment shall be cleaned and serviced at regular intervals as prescribed by the manufacturer.
(c) Cleaning and housekeeping.
(a) Plumbing.