Preserve indoor air quality and maximize olfactory comfort in occupied spaces through the isolation and proper ventilation of indoor pollution sources and chemical storage areas.
Manage Pollution and Exhaust (1 point)
For All Spaces
All bathrooms, kitchens, rooms for cleaning and chemical storage, rooms with high-volume printers and copiers, and high-humidity areas meet one of the following requirements:
Are separated from all adjacent regularly occupied spaces with self-closing doors and/or vestibules.
Utilize exhaust fans so that return air is expelled outdoors rather than recirculated.
For Commercial Kitchen Spaces
The following requirements are met:
Canopy hoods have side or partial panels when allowable by code.
Type II hood overhangs and setbacks comply with ASHRAE 154-2011 (Table 3 - Minimum Overhang Requirements for Type II Hoods) on all open sides, measured in the horizontal plane from the inside edge of the hood to the edge of the top horizontal surface of the appliance.
The vertical distance between the front lower lip of the hood and cooking surface is less than or equal to 1.2 m [4 ft].
Makeup air velocity near (or directed at) the hood is less than 0.25 m/s [75 fpm].
Replacement air introduced directly into the exhaust hood cavity does not exceed 10% of the hood exhaust airflow rate.
At least 50% of the air that replaces the exhaust air is conditioned transfer air rather than makeup air.
Appliances are grouped under exhaust hoods according to effluent productions and associated ventilation requirements, as specified in ASHRAE 154-2011, per hood type (defined by the classifications used in ASHRAE 154-2011 for light, medium, heavy and extra-heavy appliance duty levels).
Appliances have a rear seal between the appliance and the wall when allowable by code.
Appliances located at the end of a cook line requiring exhaust airflow rates greater than 460 L/s/m [300 CFM/ft] have a full side panel or an end wall.
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