Abstract: Disclosed is a smart mask capable of monitoring air quality, which is inhaled by a user. A smart mask, according to one embodiment of the present invention, comprises: a main body which forms an internal space by being placed on a partial region of a user's face including the nose and mouth; a close contact portion which is formed on the outer circumferential surface of the main body and brings the main body into close contact with the face when the smart mask is worn; a filter part which is formed on the main body to filter outside air and then provide the outside air into the internal space of the main body; and an internal sensor which is formed inside the main body to measure air quality of the internal space.