Newborns can open the air conditioning, the use of air conditioning, pay attention to the control of the appropriate room temperature, and properly maintain air circulation. 1. Control the appropriate room temperature: the appropriate ambient temperature for newborns is 24~26℃. High room temperature will lead to the baby’s body temperature rise, sweaty discomfort, low room temperature will lead to hypothermia. Therefore, air conditioners can be used to regulate the room temperature and keep it within the appropriate range, but the air vents should be avoided to face the newborn directly. 2. Maintain air circulation: a long time to close the windows and doors to use air conditioning will make the indoor humidity is too low, affecting air quality. This can cause respiratory infections, dry skin, dehydration and other problems in newborns. Therefore, the need to maintain a certain air circulation time, close the air conditioning to open the windows and doors for ventilation, with the use of air purification filters, humidifiers and so on. Newborns should pay attention to the use of air conditioning to observe the child’s general condition, such as the emergence of cold hands and feet, abnormal body temperature, nasal congestion, runny nose, refusal of milk and other manifestations should be promptly consulted.