A cleanroom is a controlled environment designed to minimize contamination from particles, microbes, and other pollutants. These specialized spaces are commonly used in industries such as pharmaceuticals, electronics, and biotechnology, where even tiny particles can affect product quality and safety. Cleanrooms maintain strict standards for air cleanliness, temperature, and humidity. To achieve cleanliness, cleanrooms use high-efficiency particulate air (HEPA) filters and controlled airflow systems. Personnel must wear protective clothing, such as gowns and gloves, to prevent contamination. The classification of cleanrooms is based on the number and size of particles allowed in the air, with higher classifications indicating cleaner environments.