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NYC Mechanical Code

§ 502.9.9 — § 502.9.9

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What is NYC MC § 502.9.9?

Quick Answer

This section mandates that ozone cabinets and ozone gas-generator rooms, with a maximum ozone-generating capacity of half a pound or more over 24 hours, must have mechanical ventilation at a specified rate. Applies to operators of facilities using ozone gas generators.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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502.9.9 Ozone gas generators.

MC § 502.9.9

Ozone cabinets and ozone gas-generator rooms for systems having a maximum ozone-generating capacity of one-half pound (0.23 kg) or more over a 24-hour period shall be mechanically ventilated at a rate of not less than six air changes per hour. For cabinets, the average velocity of ventilation at makeup air openings with cabinet doors closed shall be not less than 200 feet per minute (1.02 m/s).

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