Abstract: A humidifier-nebulizer apparatus is disclosed which includes a liquid reservoir having a sterile liquid such as water contained therein, the liquid reservoir having a sealed wall portion adapted to be pierced by the piercing element of an adapter head when mounted on the liquid reservoir. The adapter head may be attached to a source of pressurized gas, such as oxygen, and includes control valve means movable to discharge a nebulized gas-liquid mixture from the adapter head during a nebulizing mode of operation. The control valve means is also adjustable to a position to introduce oxygen into the liquid reservoir in a manner to effect discharge of humidified oxygen through a discharge port on the liquid reservoir.

Abstract: A humidifier-nebulizer apparatus is disclosed which includes a liquid reservoir having a sterile liquid such as water contained therein, the liquid reservoir having a sealed wall portion adapted to be pierced by the piercing element of an adapter head when mounted on the liquid reservoir. The adapter head may be attached to a source of pressurized gas, such as oxygen, and includes control valve means movable to discharge a nebulized gas-liquid mixture from the adapter head during a nebulizing mode of operation. The control valve means is also adjustable to a position to introduce oxygen into the liquid reservoir in a manner to effect discharge of humidified oxygen through a discharge port on the liquid reservoir.