1. OH1


OH1 Indoor Conditions



Intent 1:

To limit the probability that, when an exhaust system is not operating and under conditions of positive stack effect pressure, airborne contaminants (e.g. exhaust fumes from a parking garage) will enter the building, which could lead to negative effects on the air quality of indoor spaces, which could lead to harm to persons.

Intent 2:

To exempt certain situations from the application of Sentence, where there is little risk of airborne contaminants entering the building.

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