Deep Breathing Lung Exerciser, Washable Respiratory Training System, 3 Ball Exercise, Incentive Spirometer Spirometry for Trainer

【Maintain Lung Health】: Breathing trainer is designed to train and measure inhalation, improving lung ventilation, keeping airways open, and increasing lung expansion—ideal for asthma, resistance, and lung recovery. 【Professional Design】: Equipped with dual card connectors for a secure fit, this spirometer features 3 colored balls representing airflows of 600 ml/s, 900 ml/s, and 1200 ml/s for customizable breathing training. 【Easy to Use】: Simply place the liquid in the pouch to stimulate fermentation, hold the balloon for 2-3 seconds while breathing calmly, repeating the series 10 to 15 times for effective results. 【Bright Colors for Fun Training】: The vibrant 3-ball design adds a playful touch to your training routine, boosting motivation through color psychology and making respiratory exercises an enjoyable experience. 【Clean and Hygienic】: Built with strong, easy-to-clean materials, the spirometer ensures durability and hygiene, helping prevent cross-infection while providing long-lasting support for your respiratory health.