A nebulizer is provided to atomize a liquid medicationfor rapid delivery of an aerosol spray to a user via inhalation. Thenebulizer includes a jar having a compressed gas passage. A jetcooperates with the jar and has a jet orifice through which the liquidmedication and the compressed gas are discharged to form an aerosol flow.The cap is connected to the jar to define an inner chamber. The capincludes an entrainment port for ambient room air, and a chimney influid communication with the entrainment port and the inner chamber.A deflector base having an impingement member is located adjacentto the entrainment chimney and is spaced below an opening thereof bya predetermined distance to provide a flow of the ambient room air tobe entrained in the aerosol flow in order to enhance nebulization speedwhile maintaining a desired aerosol particle size.
