Points to note when using a full steel ventilation cabinet:

2. Do not place your head inside the cabinet for operation or observation during the experiment.

4. Absolutely no mobile drill shavings or wires are allowed inside the cabinet.

6. Move windows up and down slowly and gently to avoid pinching your hand with the handles.

8. The operating area of the steel ventilation cabinet should be kept clear to prevent items from piling up around the cabinet.