The room temperature or environmental protection temperature of air conditioner stipulated by the state is 26℃, which can be adjusted appropriately according to personal situation when sleeping. Generally, the indoor and outdoor temperature difference does not exceed 7℃, and the air humidity is kept at about 60%.
It should be 26℃ ~ 28℃ in summer and 18℃ ~ 20℃ in winter. The air conditioning temperature should not be too different between indoor and outdoor, and it is generally appropriate to be between 5℃ and 10℃.
The purpose of air conditioning is to create a comfortable environment for us. Human comfort depends on the thermal balance of the human body. There are many factors that affect the heat balance, such as environmental temperature, relative humidity, air velocity near human body, surface temperature of objects, personal living habits, activity intensity, clothing, people's age, health status and so on. These are the standards that affect the air conditioning temperature setting.
Comfort is a subjective feeling caused by the comprehensive action of subjective and objective factors. As far as temperature is concerned, the temperature that makes people feel lukewarm is called "physiological zero". Physiological zero is the most comfortable temperature for people, and different people will have different physiological zero. And the physiological zero of the same person is different under different conditions.
For normal healthy people, the physiological zero is about 28℃ ~ 29℃. Therefore, the temperature of the air-conditioned room should be as close as possible.