Breathing Trainer 5000ml with Flow Indicator, Lung Capacity Measurement Device, Transparent Plastic Lung Exerciser

Breathing Trainer 5000ml with Flow Indicator, Lung Capacity Measurement Device, Transparent Plastic Lung Exerciser Description

Product Details 1. 5000ml large capacity allows for accurate measurement of lung capacity, supporting comprehensive lung health assessment 2. Helps improve breathing techniques through slow, deep breathing practice to promote oxygen circulation and expand lung function 3. Flow rate indicator guides breathing - keep it in the middle position for smooth and controlled breathing 4. Precise measurement function enables effective tracking of lung health improvement progress 5. Flexible tube and mouthpiece are easy to adjust for different postures and simple to clean after use, with built-in storage space Specification 1. Material: Plastic 2. Color: Transparent Package List 1. 1 breathing trainer Warm Tips 1. Light reflection and different displays may cause slight color differences between the picture and the actual product 2. Allowable measurement error is plus or minus 1 - 3 cm