5000ml Lung Breathing Exercise Device

Delivery time: US: about 3-6 Business Days(Note: We do not support PoBox addresses) Other: about 7-15 Business Days Product Features: 5000ml Breathing Trainer Our breathing trainer helps to improve respiratory function, enhance lung capacity, and promote respiratory health. The 5000ml volume provides ample capacity for deep exhalations. (Exercise time should be adjusted according to medical advice and personal circumstances for optimal results.) Durable & Comfortable Material Our breathing trainer features a PP mouthpiece and anti-bending tubing, ensuring lasting performance. The thickened, integrated molded body ensures safety and comfort while using, allowing you to focus solely on your breathing exercises. Optimal Breathing Rate Guidance The trainer provides guidance for maintaining the optimal breathing pace and volume. The higher position of the ball indicates too rapid breathing, the lower position too slow, and the middle position indicates steady and controlled bre