To provide a method for purifying a cabin of an automobile capable of well circulating air in the cabin of the automobile, and purifying and discharging warm air stored around a head, polluted air stored in the cabin.

A hole 5 is opened in a ceiling 2' of an automobile. Warm air and polluted air is taken therein. Another hole 6 is opened in the ceiling to discharge the taken-in warm air and polluted air therefrom.