L554-005 Reusable BAG VALVE MASK complete with mask, oxygen tube and reservoir in cardboard box . L554 Reusable Bag Valve Masks are available in rear-fill and front-fill systems. These BVMs offer low cost, portability and ease of maintenance coupled with ability to manually feel a patient’s respiratory response. The complete bag valve mask has three basic modular components: a Latex-free silicone bag in adult, child and infant sizes; a patient valve that works with sizes of bags; and a mask in adult, child and infant sizes.