An air manifold system that includes an improved air nozzle is provided. The flow chamber is configured to convey a fluid composition comprising a desired and an undesired fluid from the inlet to the outlet. The faceplate may provide protection to a user inscription surface on one of the surfaces of the handle which is may be configured to receive user indicia that may later be removed and further indicia provided. 3 microns, passed through a bed containing either natural or synthetic molecular sieves capable of removing carbon dioxide and carbon monoxide and then returned to the breathing circuit for recirculation to the patient. In an embodiment, the inner diameter of the sleeve is increased while the end of the hose is already placed on the sleeve.