Wireless respiratory monitoring device

A wireless respiratory monitoring device comprising:

• a main body unit including a middle body portion having an insertion portion inserted into a user's nose, and an extended body portion extending from the middle body portion to both sides and configured to surround and hold a nosewing portion of the user;
• a piezoresistive sensor which is installed on an inner surface of the insertion portion and disposed inside the user's nose, includes a plurality of nanorods having a piezoresistive property, and is configured to sense the user's breathing characteristics by using resistance changes caused by deformation of the nanorods according to airflow changes due to the user's breathing;
• a circuit unit disposed within the extended body portion and electrically connected to the piezoresistive sensor;
• a wireless communication unit disposed within the extended body portion and electrically connected to the circuit unit;
• and
• a battery member disposed within the extended body portion and configured to supply power to the circuit unit and the wireless communication unit.