Clothes treatment apparatus

A clothes treatment apparatus comprising:

• a cabinet comprising an accommodating space formed therein to accommodate clothes;
• an air supply device configured to supply air or heated air to the accommodating space;
• a duct configured to guide the air or the heated air supplied by the air supply device toward the accommodating space, wherein the duct comprises:
• an inlet duct configured to supply the air inside the accommodating space to the air supply device;
• and
• an outlet duct configured to supply the air exhausted from the air supply device to the accommodating space,
• a circulation fan provided in the duct and configured to circulate the air inside the accommodating space along the duct;
• and
• a communication part comprising at least one opening provided in the outlet duct and a door provided to open and close the opening to draw external air into the accommodating space.