A mask for collecting expiration compulsorily was created.   In drunken driving regulations for the driver, alcoholic concentration in the driver's expiration is necessary.   There are some drivers who refuse to present their expiration for the alcoholic inspection.   In such a case, it is necessary for us to acquire a search warrant from a court and extract blood compulsorily at a hospital. The alcoholic concentration of the extracted blood must be measured at the Forensic Science Laboratory. If the alcohol concentration is more than the regulation, the driver will be confirmed to have driven under the influence of alcohol.   During this time and labor consuming period, the alcoholic concentration will reduce. In order to avoid such inconvenience, I designed and made a mask to extract expiration.   By referring to an expiration extraction mask and bag used for research for exercise physiology, I made a mask which one can breathe more comfortably.   This mask can be used at the drunken driving regulation spots.   Moreover, it can also be used for the drivers who are unconscious by an accident and hospitalized.