an enclosure with a movable sash that has been designed to prevent or minimize the escape of air contaminants into the laboratory
a safety backup for condensers, traps, or other devices that collect vapors and fumes
a type of local exhaust ventilation system ( engineering control )
a ventilated, enclosed work space intended to capture, contain and exhaust harmful or dangerous fumes, vapors and particulate matter generated by procedures conducted within the hood
a ventilated enclosure in which gases, vapors and fumes are contained
A device located in a laboratory, enclosed on five sides with a movable sash or fixed partial sash enclosed on the remaining side; constructed and maintained to draw air from the laboratory and to prevent or minimize the escape of air contaminants into the laboratory; and allows chemical manipulations to be conducted in the enclosure without insertion of any part of the employee's body other than hands and arms.
a ventilated, enclosed work space, with an open front, intended to capture, contain, and exhaust airborne contaminants generated within it – also called a laboratory hood.
A fume hood or fume cupboard is a large piece of scientific equipment common to chemistry laboratories designed to limit a person's exposure to hazardous fumes. Fume hoods were originally manufactured from timber, but now epoxy coated mild steel is the main construction material. Two main types of unit exist, ducted and recirculating.
