2017 Florida Building Code - Residential, Sixth Edition
CHAPTER 15 EXHAUST SYSTEMS
First Printing: Jul 2017
M1507.2 Recirculation of air.
Exhaust air from bathrooms and toilet rooms shall not be recirculated within a residence or to another dwelling unit and shall be exhausted directly to the outdoors. Exhaust air from bathrooms and toilet rooms shall not discharge into an attic, crawl space or other areas inside the building.
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