What signs should be set in the workplace where dust is produced?

The workplace where dust is generated shall be marked: 1. No sign: no smoking, no fireworks. 2. Set warning signs: beware of explosion. 3. Indicating sign: Wear a dust mask. 4. Prompt sign: emergency exit.

Yili energy-saving industrial welding dust collector controls the dust and waste gas pollution in the workshop and creates a dust-free workshop.