Size 4 Oxygen Mask Set Adult BVM resuscitation system, 1L bag (40cm H2O),
Equipped with a 1L bag, a built-in pressure relief valve, and a size 4 mask, it ensures safe and effective resuscitation in critical situations. Adult BVM Resuscitation System – 1L Bag with Pressure Relief Valve (40cm H2O), Size 4 Mask.