An Emergency Kit Resuscitator Mask is also referred to as an Ambu Bag or a Bag Valve Mask (BVM). This medical airway device provides assisted ventilation to individuals who are no longer breathing or are experiencing breathing difficulties.
This is used as physical barrier to prevent the victim's breath and body fluids from reaching the rescuer. One-way valve and directional diaphragm prevents back-flow of air and contaminants.