411.1 The air from dining areas may be used to ventilate… — 2025 California Mechanical Code
California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-10-19 · California
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Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Mechanical Code (Title 24, Part 4) § 411.1 · Effective January 1, 2026 · Official source: Building Standards Commission
411.1 The air from dining areas may be used to ventilate the food preparation areas only after it has passed through a fil- ter with at least an 80 percent average efficiency based on ASHRAE 52.2 or a minimum efficiency reporting value (MERV) of 13, based on ASHRAE 52.2.
Exception: For skilled nursing facilities, intermediate care facilities and correctional treatment centers, the air from dining area may be used to ventilate food preparation areas only after it has passed through a filter with a 50 percent average effi- ciency based on ASHRAE 52.2 or a minimum efficiency report- ing value (MERV) of 10, based on ASHRAE 52.2.
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