Abstract: An apparatus and method are provided for administering an inhaled drug to a person while simultaneously administering oxygen from a medical oxygen mask. The inhaled drug is from a pressurized metered dose inhaler (MDI), employing an extender tube about 3-10 cm long that fits into or over the mouthpiece of the inhaler. The MDI with extender tube is inserted into the mask and positioned so that the plume of drug travels through the extender when the MDI is actuated and is directed to just inside the mouth of the person. In an embodiment, an exhalation filter is provided to prevent contamination from infectious agents in the exhaled air from the person.