§ 14X-6-603.4 — Process ventilation
Municipal Code of Chicago (2026 S-74, current through Council Journal of June 17, 2026) · Municipal Code of Chicago § 14X-6-603.4
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14X-6-603.4 Process ventilation.
Where injurious, toxic, irritating, or noxious fumes, gasses, dusts, or mists are generated, a local exhaust ventilation system must be provided to remove the contaminating agent at the source. Contaminated air must be exhausted to the exterior and not recirculated to any space.