A cleanroom is a controlled environment used in a variety of industries and applications where contamination control is critical. Cleanrooms are designed to minimize the introduction, generation, and retention of airborne particles, as well as to control other environmental parameters such as temperature, humidity, and pressure. Cleanrooms are typically used in industries such as semiconductor manufacturing, pharmaceuticals, biotechnology, aerospace, and healthcare. In these industries, even small particles and contaminants can have a significant impact on product quality, yield, and reliability. Cleanrooms are used to manufacture products that require a high level of purity, such as integrated circuits, medical devices, pharmaceuticals, and precision instruments. In a cleanroom, the level of contamination is measured by the number of particles per cubic meter of air. The standard classification for cleanrooms is based on the ISO 14644-1 standard, which defines nine classes of clea