Provided is a gas mist inhaler ensuring hygiene while enabling a reduction in costs by making only one part of the gas mist inhaler disposable. A gas mist inhaler is provided with: a gas supply means (30) for supplying oxygen carbon dioxide gas or a mixed gas of oxygen and carbon dioxide gas a gas mist generation means (40) which has a connection portion (45) connected to the gas supply means (30) a liquid reservoir portion for storing a liquid a nozzle for supplying the gas a liquid suction tube for feeding the liquid to the tip of the nozzle a collision member for using the gas stream to collide the liquid lifted from the nozzle and convert the liquid to a gas mist a cylindrical gas introduction portion for bringing the gas to the upper portion of the nozzle and a donut shaped gas mist discharge portion for collecting and discharging the gas mist and an inhalation member (50) connected to the gas mist generation means (40) and having an inhalation port (53) for enabling the inhalation of the gas mist into an organism. The gas mist generation means (40) is configured so that at least the liquid reservoir portion can be detached and replaced by another and the liquid reservoir portion is disposable.
