MOUTH PIECE OF EXPIRATION COMPONENT MEASURING DEVICE, EXPIRATION COMPONENT MEASURING ASSEMBLY, EXPIRATION COMPONENT MEASURING DEVICE, AND EXPIRATION COMPONENT MEASURING SYSTEM

摘要

PROBLEM TO BE SOLVED: To check that a person to be examined is continuing expiration, and to extend service life of an expiration measuring device.SOLUTION: There is provided a mouth piece attached to an expiration component measuring device for measuring alcohol concentration in the expired air of a person to be examined. The mouth piece includes a blow-in port into which the expired air of the person to be examined is blown, and an expired air flow channel through which the expired air blown from the blow-in port is caused to flow in the expiration component measuring device. The mouth piece further includes a sound generation unit for generating a sound by the flow of the expired air.