A fan that removes stale air, odors, or pollutants from a room and exhausts them to the outside.
A mechanical fan that removes air, heat, odors, contaminants, or moisture from a space to the exterior of the building. Exhaust fans are used in restrooms, kitchens, laboratories, parking garages, and other areas requiring positive ventilation. They may be wall-mounted, ceiling-mounted, or roof-mounted and must be coordinated with makeup air supply to maintain proper building pressurization.
Code requires a dedicated 200 CFM exhaust fan in each restroom to maintain the minimum ten air changes per hour.
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