Air showers are a tool that allows for people and/or objects to enter a clean area without bringing in unwanted contaminants such as dust and bacteria. Air showers act as a sort of buffer or air lock between two areas of varying cleanliness, and preserve the air quality of a dynamic clean environment. Due to their usefulness and simplicity, air showers are a critical component of modern-day cleanroom facilities.

Air showers employ high-speed currents of air to blow microscopic dust and bacteria particles off of clothing and other surfaces. The air used in air showers runs through a filtration system in order to maintain air purity and avoid recirculation of microscopic contaminants.