Place of use:
1. Floating dust is easy to flow into more public places:
Office buildings, parking lots, hotels, department stores, exhibition halls, supermarkets, stations, airports, banks, etc
2. Manufacturing plant:
Semiconductor,PCB, screen, fine parts, precision processing, medicine, food, etc
3. Public welfare places: schools, kindergartens, hospitals, etc
4, other: security access, boarding, military facilities, etc