Respiratory therapy filter, flow control, and patient interface apparatuses, systems, and methods

A nebulizer assembly for a respiratory device comprising:

• a housing defining a chamber, the housing having an inlet in flow communication with the chamber and an outlet in flow communication with the chamber, the housing extending linearly along a central longitudinal axis of the housing between the inlet and the outlet, wherein the central longitudinal axis of the housing intersects an inlet plane formed by the inlet and an outlet plane formed by the outlet at an orthogonal angle relative to the central longitudinal axis, and wherein the inlet of the housing has a larger circumference than the outlet of the housing, the housing further having a nebulizer port configured to receive a nebulizer to discharge atomized medication into the chamber;
• a handle having an inlet and an outlet, the handle being curved smoothly to form an obtuse angle between the inlet and the outlet, wherein the outlet of the handle is coupled to the inlet of the housing, wherein the housing is circumferentially rotatable about the outlet of the handle so that the nebulizer is operable at all circumferential positions with respect to the outlet of the handle;
• a hose coupled to the inlet of the handle;
• and
• a patient interface coupled to the outlet of the housing,
• wherein air flows from the hose to the patient interface via the handle and the housing, the air mixing with the atomized medication within the chamber.