The AirLife Volumetric Incentive Spirometer 4000ml with One-Way Valve by Vyaire is a handheld spirometer designed for respiratory therapy. This model, AirLife 001902A, is intended to assist individuals in the discipline of improving lung function by providing accurate measurements and inspiration prompts. With its one-way valve design, this spirometer ensures precise and controlled breathing exercises for patients looking to enhance their respiratory health. It is a reliable tool for medical professionals and patients alike.
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