Protector Premier Laboratory Hoods are benchtop design and are offered in 4', 5', 6' and 8' widths so their dimensions exactly match standard laboratory casework or accessory Protector Base Cabinets and Stands. Choose hoods designed to be used with a remotely located blower or hoods that include a built-in blower. Models shipped with a blower have a built-in belt-driven, corrosion-resistant exhaust blower with adjustable sheave, molded thermoplastic housing and nonsparking, coated aluminum impeller. The Protector Premier Laboratory Hoods incorporate a redesigned, sleek exterior with a one-piece fiberglass reinforced polyester liner, the signature feature of Labconco's leading line of fume hoods since 1961. The liner has many benefits. Fiberglass is corrosion-resistant, durable, fire-resistant and light reflective. The smooth one-piece molded construction offers fewer crevices for easy cleaning. Protector Premier Laboratory Hoods are suitable for general chemistry applications. Explosion-proof models (built-in blowers) are available for applications involving high concentrations of flammable solvents. They feature an explosion-proof blower and incandescent light fixture (bulb not included). Furnished without switches, electrical receptacle and wiring as these must conform to varying local codes. All Protector Premier Hoods have by-pass airflow design. Ergonomic air foil with aerodynamic Clean-Sweep* airflow openings. Glacier white, dry powder epoxy-coated steel exterior. One-piece molded fiberglass liner and pre-set baffle(s) with flame spread less than 25 per ASTM E-84. 3/16" thick tempered safety glass vertical-rising sash with epoxy coated sash handle. Removable front and side panels and front access panels for access to plumbing and electrical wiring. Pre-wired instant-start T8 fluorescent lighting, light and blower switches (non-explosion-proof models only). Fixtured models feature two pre-plumbed service fixtures with forged brass valves, lower right side with brass tubing for gas and lower left side with copper tubing for cold water. Components for converting either or both fixtures to air and vacuum are provided. Inlet tubing is not provided. One pre-wired 115 volt, 20 amp electrical duplex receptacle on lower right side (115 volt models). All models will require (not included) ductwork, work surface, base cabinet or stand. All available fume hood configurations are too numerous to list. We can assemble a variety of fixtures, blowers and lighting to meet your specific needs. Please inquire. Compliance with SEFA 1-2002 (Laboratory Fume Hoods), NFPA 45-2000 (Fire Protection for Laboratories Using Chemicals) section 6-1 through 6-14, ASTM E84-01 Surface Burning Characteristics of Building Materials, ASHRAE 110-95 (Method of Testing Performance of Laboratory Fume Hoods), ANSI Z9.5-1993 (Laboratory Ventilation), UL 3101-1/61010-1, CAN/CSA. C22.2 No. 1010.1, UL 1805. Models listed are 115V. 230V models are available.