Clean rooms are controlled environments designed to minimize contamination from airborne particles, dust, and other pollutants. They are commonly used in industries such as pharmaceuticals, biotechnology, and electronics, where even tiny particles can affect product quality and safety. Clean rooms maintain strict standards for air cleanliness, temperature, and humidity. To achieve these conditions, clean rooms use specialized ventilation systems, air filters, and controlled access protocols. Personnel working in clean rooms often wear protective clothing, such as gowns and masks, to prevent introducing contaminants. The classification of clean rooms is based on the number and size of particles allowed in the air, often measured in ISO standards.