One Pressure Valve
The inlet side of the valve is a 22 mm connector that fits on the outlet port of the BiPAP or CPAP machine. The outlet side of the valve fits a 22 mm connector on a bacteria filter or smooth inner lumen tubing. The minimum operating pressure is 2 cm H2O.
: The Pressure Valve is not an exhalation port and does not vent exhaust gas during exhaustion.