【Sports vital capacity】: This trainer is used for exhalation and exhalation exercise and measurement, which is beneficial to increase lung ventilation. (Random colored balls / 16*5*15 cm/6.3*2*6 inch)
【Durability】: The tube has good bending resistance, does not affect the patient’s posture, is easy to clean, and is durable. It is made of high-quality materials and has a longer service life.
【Three specifications and multi-speed adjustment】: The speed of the three chambers starts from 600cc/900cc/1200cc, the inhalation speed is 9 gears, and the exhalation speed is 8 gears.