Adjustable Oxygen Venturi Mask
Tube 2 meters (7 ft)
Size:

XL(ADULT ELONGATED), L(ADULT), M(PEDIATRIC), S(NEONATAL)

Color: light green, clear     Six Venturi Valves for choice:    
blue-24%, yellow-28%, white-31%,
green-35%, pink-40%, orange-50%