The present invention provides an anesthetic inhalation aiddevice that is easily handled and enables prompt inhalationadministration of anesthetic to a patient. The devicecomprises an inhalation mask, an artificial nose unit, ananesthetic gas concentration detector, an extension tube,an anesthesia attachment. The elastic bag has a mixingchamber formed therein, and the bag is elastically deformedby hand to increase and decrease the volume of the mixingchamber. The anesthetic introduced into the mixing chamberis vaporized and then mixed with air into mixed gas. Themixed gas is supplied to the inhalation mask by decreasingthe volume of the mixing chamber.
