About this item

• 3 Different Size Masks: Cover almost all people except infants. Make sure the mask fits the face and forms a vacuum environment
• Consistent suction about 33KPa: Provide instant pressure to relieve choking, and ensure optimal results every time
• Easy to Operate: Quickly release danger with only one button trigger in emergency while supporting self-rescue
• Safety: Greatly reduce the damage caused by mask pressure to face and neck, eliminating the risk of secondary damage caused by the blockage going deeper
• Preloading: Improve the speed and ease of rescues, conserving precious time during emergencies.