What safety measures do laboratory fume hoods have?

Integrity is the mission pursued by laboratory fume hoods and a necessary condition for their normal operation. So, how do fume hoods protect the safety of workers and prevent pollution to the surrounding environment?
1. Adopting a three-stage exhaust structure can effectively discharge harmful gases.
2. Streamlined handle with a gap between the handle and the glass. Due to the rotating flow of air on the table, gases of different densities can be quickly expelled without leaving any dead corners. Experimental cabinet
3. Set up window anti fall pins to prevent staff from being injured even if the steel wire rope falls off and the glass window accidentally falls down.
4. The lighting fixtures and wires are completely isolated from the interior space of the cabinet to prevent corrosion and explosion.
5. A supplementary air device is installed on the upper part of the fume hood for outdoor supplementary air, with a supplementary air rate of up to 95%.
6. The outer shell of the fume hood is made of galvanized steel plate and sprayed with pure epoxy resin, which is fire-resistant and non combustible. The inner cavity is made of solid core anti double special plates, stainless steel plates and other flame-retardant or non combustible materials, and the tabletop is made of solid core physical and chemical plates or stainless steel plates, which are acid and alkali resistant, heat-resistant and flame-retardant.
7. The sliding door is a frame structure that allows the entire door to move up and down and stay infinitely. At the same time, the glass doors inside the cabinet can move left and right, making it more convenient to operate.
8. Water and gas nozzles can be operated remotely outside the cabinet with a handle, which is more convenient and safe than direct manual operation.