<Features Meets ISO-8382 and ASTM0920 standards Texture surface for slip free operation in wet conditions Faster rebound and less memory material applied for ease of operation Ergo designed shape provides ease of handling and less access force Clear resuscitation bag for ease of observation High efficiency silicone duckbill patient valve minimizes back leakage Provides low inspiratory and expiratory resistance Swivel 15/22mm patient connector Meets ISO-5356-2 standard 40cmH2O pressure relief for child and infant models 60cmH2O pressure relief available with or without lock function for adult model 32mm reservoir connection for lower intake resistance High efficiency reservoir system provides up to 99% oxygen concentration at low flow Oxygen tubing connection for ease of access Inflatable clear air cushion mask provides better seal, ease of observation during access and also patient comfort