Generally speaking, children with fever can turn on the air conditioner; however, attention should be paid to the air conditioning temperature, indoor moisturizing, opening windows and ventilation. 1. Because the child’s body temperature is higher than normal when fever occurs, and the child’s ability to regulate body temperature is relatively poor, especially in hot weather, the appropriate air conditioning is conducive to helping the child cool down. However, it is recommended that the air conditioning temperature be set at 25~27℃, and the cold air from the air conditioner should not be blowing directly on the child. 2. As the water loss in air-conditioned rooms is relatively large, and children are also prone to lose water when they have a fever, it is recommended that children drink more water, and you can also use a humidifier to increase the humidity of the room to avoid excessive dryness. 3. With the process of air conditioning should pay attention to the room to be regularly ventilated, it is recommended that every 2 to 3 hours to open the window to let the indoor and outdoor air to be exchanged, to maintain air circulation. In summary, the child’s fever can generally moderate open air conditioning, in addition to the timely consultation should be clear cause of fever to give targeted treatment.