What is the suitable temperature of hot air in air conditioning?

In the design and manufacture of air conditioners, it is generally allowed to control the temperature between 16~32℃. The most comfortable temperature for people is 20℃ to 25℃. The optimal temperature of air conditioning in winter is 20℃, which can also be set according to the lowest temperature of activity place 16℃, the lowest temperature of office 18℃, the bedroom 22℃, the hotel room 25℃ and the bathroom 28℃. The popularity of extended data air conditioning originated from cinemas in the 1920s. Cinema promises to provide cool air for the audience with air conditioning technology, making air conditioning as attractive as the film itself, and summer has replaced winter as the peak season for watching movies.