Abstract: An improved spirometer to indicate peak flow expiration from a patient, as well as to enhance pulmonary monitoring. Perpendicular to the standard mouthpiece is a chamber with a centrally positioned rod guiding a spring biased piston, responsive to expiration-induced air flow from the patient.

Abstract: A pulmonary muscle trainer consisting of a tubular body having a poppet valve dividing the body into two sections. The poppet is adjustably biased into the closed position, whereby inspiration of a given intensity will be sufficient to overcome the bias and allow air flow through the unit. The poppet is supplied with a one-way valve element to permit the user to create an unrestricted expiration air flow to allow a breathing rhythm to be established. In a preferred embodiment bias is maintained on the poppet by a spring whose compression is adjustable by means of a collar manually positionable within the body of the unit. By the use of the poppet a constant threshold pressure load may be applied.

Abstract: A pulmonary training method for persons having COPD involving daily exercise by inhaling through a restricted opening with inspirative resistance less than that producing stress.