Passy-Muir, Inc. is a manufacturer and distributor of communication prosthetic devices for tracheostomized and ventilator dependent patients, including the Passy-Muir® Tracheostomy and Ventilator Swallowing & Speaking Valve, the only patented bias closed position "no leak" valve designed to fit adult and pediatric tracheostomy tubes. The Passy-Muir® Valves open easily during inspiration, closing at the end of inspiration, redirecting all exhaled air through the oronasopharynx, providing clear uninterrupted speech.
