Industrial masks are worn to protect workers from various hazards in industrial settings. Here are some types and uses of industrial masks:

1. _Dust masks_: Protect against dust, sand, and other airborne particles.
2. _Respirators_: Filter out harmful gases, vapors, and aerosols.
3. _Half-face masks_: Cover the nose and mouth, used for welding, painting, and chemical handling.
4. _Full-face masks_: Cover the entire face, used for more severe hazards like chemical splashes.
5. _Gas masks_: Designed for emergency response, military, and industrial applications where toxic gases are present.
6. _Welding masks_: Protect welders from sparks, UV radiation, and metal particles.
7. _Medical masks_: Used in healthcare settings to prevent the spread of infections and germs.

When selecting an industrial mask, consider factors like:

- Hazard type (dust, gas, chemical)
- Filter type and rating
- Face fit and comfort
- Durability and maintenance
- Standards and regulations (OSHA, NIOSH, CE)

Proper training required