Several points should be noted when using all-steel fume hoods:
1. It is prohibited to conduct experimental courses in the fume hood when the equipment is not turned on.
2. It is prohibited to put the head into the cabinet for operation or observation during the experiment.
3. It is prohibited to store and test flammable and explosive items in the cabinet.
4. It is strictly prohibited to place moving cuttings or wires in the cabinet.
5. Mixing experiments of organic substances and prohibited highly chlorinated substances are prohibited in the ventilator.
6. Move the window up and down slowly and gently to avoid the handle squeezing your hand.
7. During the experiment, it is better to place the window 10 to 15 cm away from the desktop.
8. The operating area of the all-steel fume hood should be kept clear to prevent items from accumulating around the fume hood.