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The One-Way Valve Mouthpiece is a disposable paper mouthpiece featuring a one-way valve for expiratory-only testing. The plastic valve has been designed to provide low air resistance. This mouthpiece features a 1 3/16 inch outside diameter, the same diameter as our popular paper mouthpiece #162600.
A-M Systems is a leading global manufacturer and distributor of high-quality pulmonary and respiratory care products and precision electrophysiology instruments with the goal of making health care innovation and scientific research affordable. Both divisions are united by a singular commitment to our customers who challenge us to deliver high-quality products and services.
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