AIR CUSHION MASK Transparent mask with cushion design provides better fitting and observation. Suitable for use in anesthesia, respiratory care, and resuscitation. Optional adjustable valve for air inflation. Detail Color-coded hook ring for simple size identification. Size: #5, #4, #3, #2, #1, #0. (For adult, child, baby, and infant use.) SM-060 ~ SM-065: With valve SM-060A ~ SM-065A: No valve