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Company description: Invented by a patient for patients, all Passy Muir Swallowing & speaking Valves are made in the USA to the highest of standards. Inspired by the ingenuity and passion of David Muir, the inventor of the Passy Muir Valve, Passy Muir is committed to enhancing quality of life through quality products, and a commitment to excellence in education. We believe that communication is the essence of the human spirit; it is essential to individual rights and dignity, and we are committed in our efforts to offer tracheostomized and ventilator-dependent patients a step towards independence and dignity through speech.