The act of maintaining or the state of being maintained, including repairs, cleaning, and ensuring proper function of equipment and facilities.

Protective equipment worn over the face to prevent inhalation of hazardous substances.

A facility where raw materials are processed, often through grinding, crushing, or cutting.

The process of grinding, cutting, or crushing materials in a mill.

A designated point where measurements are taken to monitor environmental conditions or pollution levels.

A facility equipped to measure and monitor environmental parameters, such as air or water quality.