Air shower is a cleanroom equipment designed to reduce contamination entering a controlled environment or cleanroom. It generally comprises an enclosed area equipped with high-efficiency particulate air (HEPA) or ultra-low penetration air (ULPA) filters, serving to cleanse individuals or objects prior to their entry into the cleanroom. It has widespread application across industries, including pharmaceuticals, biotechnology, and electronics & semiconductor manufacturing, among others. These industries rely on air showers to uphold stringent cleanliness standards and ensure the integrity of their sensitive environments by keeping them sterile and free from contaminants.