Percent-O2-Lock Venturi Systems by Cardinal Health

(Salter Labs) These Venturi systems are easily adjusted for accurate concentrations of oxygen with a single unit. The springloaded mechanism locks the prescribed concentration in place to ensure safety and correct oxygen concentrations. The systems' transparent air-entrainment mask has a soft anatomical form that is ideal for long-term users and edentulous patients and comes with a wide, adjustable elastic strap to hold the mask in place. System 8050SA includes over-the-ear straps. 50 systems per case.