<p>An oxygen inhalation therapy using a conventional device at home may be caused to have a fire at the oxygen inhaling port of a nose cannula or a mouth mask by a smoking action or to have an ignition by using the device near the presence of a fire such as a stove, thereby inviting a fire. Provided is a clinical oxygen feeding device comprising a means for acquiring highly dense oxygen, a warning means for warning of an accident with voices when the accident occurs, and a control means for controlling those two means. The clinical oxygen feeding device further comprises a temperature sensor at a proper position of the body thereof, so that the device stops the feed of the highly dense oxygen and executes a voice guide when the temperature detected by the temperature sensor becomes a predetermined value or higher.</p>
