he PMV 2001 Tracheostomy & Ventilator Swallowing and Speaking Valve (15mm I.D., 23mm O.D.) attaches to a standard 15mm tracheostomy tube hub. The PMV 2001 is low profile, lightweight, and purple in color for easy identification as a Passy Muir Valve. Supplemental low-flow oxygen may be delivered through the Valve by attaching the PMA^® 2000 Oxygen Adapter. The PMV 2001 Speaking Valve can be connected to a ventilator with the PMV^®AD22 Adapter or other 22mm flexible silicone adapters. The PMV 2001 Speaking Valve is packaged with one PMV Secure-It^® that connects the Valve to a tracheostomy tie to help prevent loss. Latex free. Made in the USA.