All Stell Fume Hood (Walk-in) 1 , Top : using 1.0mm thick cold rolled steel , surface with epoxy spraying coating after acid and phosphate washing, chemical resistant , anti-acid and alkali . Lined with U.S. imported 5mm thick physicochemical laminates boards with high temperature resistant, reasonable design diversion structure, exhaust and smooth no dead ends. Windows is 5mm thick tempered glass , high transparency, security insurance. Windows are chute designed and freely open, is scheduled to stop at any height , could help regulate speed. 2 , Table top : Adopts Wilsonart solid physiochemical board /Trespa Board/ Epoxy Board, thickness 13/16/19mm, catcher 26mm. 3,Sink: use of PP , alkali and chemical resistant , corrosion ( optional ) . 4 , Power distribution devices: including the power control, fan control , lighting control , airflow control and other integrated control system, and equipped with 40W light. All devices are universal international brand names. 5, Ventilation system : selection of corrosion -proof , low power, low noise FRP centrifugal fan , supporting high-quality polymer composites molding pipe. System noise at work no more than 60 decibels. After stop button is pressed , the fan can be delayed 0-60 minutes after the stop , in order to exclude the fume hood and duct residual toxic gases .