A clean room is a controlled environment designed to minimize the presence of airborne particles, contaminants, and pollutants. These rooms are commonly used in industries such as pharmaceuticals, biotechnology, and electronics, where even tiny particles can affect product quality and safety. Clean rooms are equipped with specialized ventilation systems, air filters, and strict protocols to maintain cleanliness. The cleanliness of a clean room is classified by its ISO rating, which indicates the maximum allowable number of particles per cubic meter of air. Personnel working in clean rooms often wear protective clothing, such as gowns, gloves, and masks, to prevent contamination from skin and clothing.