BVM (Bag Valve Masks), Ambu Bags, CPR Masks

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What are Bag Valve Masks (BVMs)? A Bag Valve Mask (BVM) , also known as a manual resuscitator , is a handheld medical device used to provide positive pressure ventilation to people who are not breathing adequately or are not breathing at all. BVMs are essential emergency airway management tools used in ambulances, hospitals, and various emergency settings. What are Ambu Bags? Ambu bag is a term commonly used for BVMs. The word “Ambu” comes from Ambu®, a company that invented the first self-inflating resuscitator in 1956 . While “Ambu bag” started as a brand name, it is now widely used to describe any self-inflating resuscitation bag. How Do Bag Valve Masks/Ambu Bags Work? Components: A BVM consists of a self-inflating bag , a one-way valve , and a face mask (or airway tube attachment) that fits over the patient’s mouth and nose. Function: When the bag is squeezed (manually compressed), it forces air or oxygen through the valve and mask into the patient’s lungs. The one-way valve ensures that air only flows into the patient during compression and allows the patient’s exhaled air to escape safely. The device can be connected to an oxygen source for higher oxygen delivery (up to 100% O₂). Purpose: Provides artificial ventilation until the patient can breathe independently or until advanced airway intervention is established. Used in cardiopulmonary resuscitation (CPR), respiratory failure, and anesthesia. When and Who Uses BVM/Ambu Bags? Emergencies: Cardiac arrest, respiratory arrest, drug overdose, severe asthma attacks, drowning, and trauma. Used by: EMS personnel, paramedics, nurses, doctors, and trained first responders. How to Use a Bag Valve Mask (Step by Step): Position the Patient: Place the patient on their back. Open the airway using the head-tilt, chin-lift or jaw-thrust maneuver (if spinal injury is suspected). Ensure a Good Seal: Place the face mask over the nose and mouth, ensuring a tight seal to prevent air leakage. Ventilation: Hold the mask firmly wi