Auxiliary Aire Fume Hood
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Auxiliary Air Fume Hoods UniFlow Auxiliary Air fume hoods reduce the loss of expensive tempered air from the laboratory. Ideal for laboratories with inadequate make-up air supply. Auxiliary Air hoods come in 48”, 60”, 72” & 96” widths. Equipped with auxiliary air plenum to induce added airow to the face opening of the fume hood. Supply air ducting and remote blower required. Auxiliary Air hoods are based on a 50% supply air to make up for room supply deciency. UniFlow Superstructure exclusive unitize dual wall construction for superior chemical resistance, strength,and durability. Meets U.L. 1805, and NFPA-45 classication with ame spread of less than 25 per ASTM E-84. Access Panel removable to access ducting connections and electrical services from a single point electrical box,115V/60Hz AC operation. Full 30” Viewing Height with 28.5” sash opening height for ease of access and viewing tall apparatus setup. Sash is 3/16 thick tempered safety glass, vertical moving with single point counterbalance,contoured sash handle for efcient air ow and ease of movement. Sash Stop located at 1/2 open sash reduces air ow by 50% and provides maximum user protection. Optional equipment. Cat. No. 51651 Air Flow Monitor continuously monitors face velocity airow, analog or digital available. Meets ANSI and OSHA requirements. Optional equipment. Plumbing Fixtures are color coded to specic service. Fume Hood Fire Extinguisher optional feature Epoxy Work Surfaces optional feature Fume Hood Base Cabinet UniFlow Auxiliary Aire Hood Cat. No. 21521, shown with optional accessories. optional feature UniFlow Auxiliary Air Fume Hoods Auxiliary Airow Diagram The recommended face velocity for efciency & safety should be 80 -100 fpm. • Auxiliary-Air fume hoods are equipped with auxiliary air plenum to induce added airow to face opening of hood. Lower face velocity may compromise user safety. Sash in full open position should be for setup of apparatus & maintenance service only. • Supply air ducting and remote blower are required. • Equipped with vapor proof-light and switch. • All electrical components and services are UL and CSA listed. HEMCO Corporation 711 S. Powell Road Independence, MO 64056 Fume Hood Face Velocity cfm If opening is at 1/2 open at 100 fpm (feet per minute), face velocity at full open would be approximately 50 fpm. Airow (sash open) auxiliary make-up, air enters supply plenum and is distributed down the exterior face in through sash opening. Airow (sash closed) auxiliary make-up, air diverts from the supply plenum through the air-by-pass opening into the fume chamber. Auxiliary Air Fume Hood Sash Management & Design Size hood

Auxiliary Air Fume Hoods UNIFLOW AUXILIARY AIR DESCRIPTIONS 1. UniFlow Auxiliary Air CAV ByPass Fume Hood with Vapor-Proof Light: Superstructure to be unitized composite FRP re resistant non-metallic Hood Depth construction. Integral fume chamber to be seamless glass-smooth with all coved corners with adjustable varaow bafe system and bell shaped exhaust collar. Picture frame sash opening with counterbalanced clear tempered safety glass sash with chemical resistant PVC framing track and aerodynamic sash lift. Built-in auxiliary air supply feature to reduce volume of conditioned air from...