VENTILATION EQUIPMENT

PROBLEM TO BE SOLVED: To provide ventilation equipment which has a night ventilation function used at a bedroom in a house or the other place, and by which night ventilation preventing an indoor temperature from being excessively cold during a night time can be achieved.SOLUTION: The ventilation equipment includes: a fan 2; an indoor temperature sensor 3; an outdoor temperature sensor 4; and a microcomputer 5. The microcomputer 5 has: a clock 19; a memory 20; and an indoor temperature prediction program 21. The memory 20 previously stores a setting time and a setting temperature. The microcomputer 5 activates the fan 2 when an outdoor temperature detected by the outdoor temperature sensor 4 is lower than an indoor temperature detected by the indoor temperature sensor 3. Furthermore, the indoor temperature prediction program 21 predicts the indoor temperature at the setting time when the fan 2 stops. The microcomputer 5 stops the fan 2 when the predicted indoor temperature at the setting time is lower than the setting temperature. Whereby, the ventilation equipment which prevents the indoor temperature from being excessively cold during the night time can be obtained.