Lifesaving devices are tools designed to prevent loss of life in emergencies. Common examples include life jackets, defibrillators, and fire extinguishers. These devices are essential in various situations, such as drowning, cardiac arrest, or fires, providing immediate assistance until professional help arrives. Many lifesaving devices are regulated and must meet safety standards to ensure effectiveness. For instance, CPR masks protect rescuers while performing cardiopulmonary resuscitation, and emergency blankets help retain body heat in critical situations. Proper training in using these devices can significantly increase survival rates during emergencies.