A bag valve mask (BVM), sometimes known by the proprietary name Ambu bag or generically as a manual resuscitator or "self-inflating bag", is a hand-held device commonly used to provide positive pressure ventilation to patients who are not breathing or not breathing adequately.

The Wikipedia page for "Lung" provides comprehensive information about this vital organ of the respiratory system.

A medical device is any instrument, apparatus, machine, implant, software or similar article that is used to diagnose, treat, monitor or prevent a disease or condition in humans.

Oxygen is a chemical element with the symbol O and atomic number 8.

A paramedic is a healthcare professional who provides emergency medical services to individuals in need.

Radiology is a medical specialty that uses medical imaging techniques, such as X-rays, computed tomography (CT) scans, magnetic resonance imaging (MRI) scans, ultrasound, and nuclear medicine, to diagnose and treat diseases within the body.

The trachea, commonly known as the windpipe, is a vital organ in the respiratory system of humans and other air-breathing vertebrates.