Large-scale air water-making machine generally refers to commercial air water-making machine, which is actually an extension of domestic air water-making machine. The direct performance is that the water-making capacity is greater than that of domestic air water-making machine, and it is a water purification product that can meet the demand of direct drinking water (boiled water, normal temperature water and ice water) for more than 20 people. Commercial air water makers are mainly used in public and commercial places, such as government agencies, office buildings, hospitals, schools, restaurants, hotels, airports and so on.