Patent ID: 6929003

Claim:
A nebulizer comprising: a housing having an ambient air inlet and a chamber for holding an aerosol; an air outlet communicating with the chamber for permitting the aerosol to be withdrawn from the chamber; a pressurized gas inlet adjacent a fluid orifice, the pressurized gas inlet in communication with the chamber; a diverter positioned in the chamber in a fixed position relative to the pressurized gas inlet; an actuator piston connected with a pressurized gas inlet cover defining a portion of the fluid orifice and positioned in the housing, the actuator piston responsive to an initial period of inhalation through the air outlet to adjust the fluid orifice to a nebulizing position wherein at least one portion of the fluid orifice is adjustable, in response to a patient's breathing, between the nebulizing position and a non-nebulizing position.