Modified Atmosphere Storage, also known as a controlled atmosphere storage facility, is a method for preserving and storing fruits and vegetables. It builds upon refrigeration by adding gas component regulation, adjusting the temperature and humidity of the storage environment.CO₂Control of oxygen concentration and ethylene concentration, to suppress the respiration of fruits and vegetables, delay their metabolic processes, better maintain their freshness and marketability, and extend their storage and shelf-life (sales shelf-life).