A disposable sealed container as it is formed is aseptically filled with a fluid for inhalation therapy. A first duct fashioned integrally with the container has an integral breachable seal to provide an opening for passing a gas such as oxygen under pressure through the water when the container comprises a humidifier reservoir for operating in a first mode and for removing water when the container comprises a nebulizer reservoir for operating in a second mode. A second duct fashioned integrally with the container has an integral breachable seal to provide an opening through which wetted oxygen is forced outwardly when the container operates in its first mode and through which atmospheric air is drawn when the container operates in one manner of a second mode. A third duct fashioned in a recess in the bottom of the container having an integral breachable seal to provide an opening for dispensing the fluid therefrom into a cup-like device from which oxygen carrying particles of fluid is dispensed while the fluid in said cup-like device is subjected to ultrasonic vibrations and oxygen is admitted under pressure into said cup-like device. A breaching tool is provided which both acts to penetrate the seal and to permit the fluid in the container to be admitted into the cup-like device in a manner to maintain a selected level. As no other holes are present in the container under this mode of operation the tool has provision for admitting a quantity of atmospheric air as it is needed to displace the fluid entering the cup-like device. The said device is useful as a holder for the container. Means is also provided for using the container as a water bottle from which the fluid may be poured.