This lung capacity trainer features a clear, easy-to-read scale that helps you accurately monitor changes in your breathing performance. Track your progress over time and visualize improvements in lung capacity and respiratory strength. Specially designed for adult users, this breath training device targets respiratory muscles through controlled inhalation and exhalation. It is suitable for beginners and advanced users who want to improve endurance, stamina, and overall breathing efficiency. Ideal as a supplementary breathing therapy tool, this trainer can assist in accelerated recovery after illness, inactivity, or respiratory challenges. Regular use may help enhance lung function, reduce shortness of breath, and support rehabilitation programs when used under professional guidance. The device offers adjustable resistance levels, allowing you to customize the intensity of your training. Start with a lower setting and gradually increase the difficulty as your breathing muscles become stronger, ensuring a safe and progressive training experience. Color: As Shown Material: plastic Package Contents: 1*Lung Capacity Trainer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.