Respiratory Trainer Choking Emergency Rescue Mask Artificial Cardiopulmonary Device Choking Emergency Device (including 1 large and 1 small mask)

Versatile functions: It integrates breathing training and emergency rescue, and can exercise respiratory muscles every day. In times of crisis, it can quickly provide first aid and escort life.Efficient first aid: A professionally designed suffocation emergency rescue mask fits tightly, effectively ventilates, and gains precious time at critical moments.Portable and easy to use: compact and lightweight, easy to carry and store, easy to operate and easy to understand, non-professionals can also get started quickly and respond to emergencies at any time.High-quality materials: made of high-quality materials, durable, hygienic and safe, with stable performance and trustworthiness.Wide range of applications: suitable for a variety of scenarios such as homes, schools, offices, etc., it is a must-have good thing to protect the health of people around you, adding a guarantee for life safety.