The L670 Disposable Bag Valve Mask is a single patient use system for manual ventilation. The BVM offers accurate, dependable operation coupled with the ability to manually feel a patient’s respiratory response, all in a tamper-proof package for single patient use. Every BVM comes with a bag, patient valve, and 7 feet of oxygen tubing. Most child and all infant bags come with a pop-off relief valve, which pops off at 45 cm H20 max and can be overridden by the operator. When used as an oxygen supplemented source, this device also ensures high FIO2 concentrations on every bag compression — no matter which clinical rate is employed.