Airfoil: Shape or steamline member at hood entrance designed to enhance movement of air into hood
Air volume: Rate of airflow, normally express in cubic fit for minutes(CFM)
ASHRAE: American society of heating, Refrigerating and air conditioning Engineers, a professional organization that set industry standard for fume hood testing procedure.
Auxiliary Air: Supply or makeup air delivered external to the chamber of a fume hood to reduce air consumption.
Baffle: Panels located across back of hood interior, which control pattern of air moving through the hood.
Blower: Air moving device(or fan) consisting a motor impeller, and scroll.
Bypass: Compensating opening that helps maintaining constant volume exhaust from fume hood, regardless of sash position.
Canopy Hood: Ceiling or wall suspended ventilating device for non critical use heat, water, favor, odors, etc.
CFM: Cubit feet for minutes