RESPIRATION MEASUREMENT DEVICE

The present invention comprises: a first body which has an air flow path formed therein to allow air generated by respiration of a user to be introduced and moved therethrough, a part of the air flow path being opened to form an opening; a second body which includes a respiration measurement unit for measuring the pressure of air moving through the air flow path, is detachably formed at the first body, and is installed to close the opening formed through the first body; and a mouthpiece which is detachably coupled to the inlet side of the air flow path. According to the present invention, the size of a respiration measurement device is reduced, so that the respiration volume of an examinee can be measured not only at home or in a clinic but also in an outdoor environment; and a second body in which a sensor for measuring a respiration air current is installed and a first body which has an air flow path for allowing a respiration air current to be moved therethrough are detachably formed, so that foreign substances produced at the sensor and the air flow path can be easily washed and removed.