An air reservoir, also known as an air tank or air receiver, is a vital component in compressed air systems. It is a storage vessel that stores compressed air generated by an air compressor for later use. The air reservoir serves multiple functions, including providing a steady supply of compressed air during periods of high demand, acting as a buffer to reduce pressure fluctuations, and assisting in moisture separation and cooling of the compressed air. The reservoir is typically made of steel and is equipped with safety valves to regulate pressure and prevent over-pressurization. This allows for a more stable and reliable supply of compressed air, ensuring efficient operation of pneumatic equipment and systems.