Features: • Simple Operation: In case of emergency, just one button can quickly release the danger, while supporting self-rescue. • First Aid Portable: Make rescue faster and easier, saving valuable time in emergency situations. • Continuous Suction of Approximately 33KPa: provides immediate pressure, relieves suffocation and ensures the best results every time. • Safety: Greatly reduces the damage caused by mask pressure on the face and neck, eliminating the risk of secondary damage caused by deepening blockage. • 3 Different Sizes: can cover almost everyone except babies. • How to Use: Ensure that the mask fits the face, forming a vacuum environment, press the button, the suction generated by the mask will quickly relieve suffocation. • Household Essentials: may not be used every day like daily items, but it is a pioneer in first aid at a critical time, adding a ray of hope for rescue. For families with children, emergency breathing apparatus is a must, because the choking rate of children is much higher than that of adults.