Salter Labs Venturi Mask Kit with Percent-O2-Lock® (Adult)

Salter Labs Percent O2 Lock Venturi Masks offer an adjustable variable Venturi System delivering accurate O2 concentrations from a single unit Concentration.  Levels are easily dialed and locked into place. This features threaded connectors which eliminate the need for christmas tree adapters.  This Venturi mask comes with 7' clear tubing.