Infants on air conditioning should generally be maintained within 26-28 degrees Celsius, because this temperature is a more comfortable temperature for infants. If the temperature is too low, the child will easily catch a cold. If the temperature is too high, the child will experience significant discomfort. When the air conditioning is on, the air may be dry, it is very important to maintain the right humidity, generally maintained at about 50%-60%, the child will feel more comfortable. The time to turn on the air conditioner should not be too long, too long is likely to lead to dirty and uncirculated air in the air-conditioned room, easy to breed pathogenic bacteria, so pay attention to regular window opening and ventilation.