Lung Trainer Purpose and health benefits: A home fitness accessory designed to keep your family's lung capacity in form. Use at home for daily health care and exercise to safely support respiratory health. Endurance improvement: Regular use can help enhance sports performance, provide a consistent training stimulus, and progressively improve exercise effectiveness. Lung capacity development: Helps increase lung capacity over time with progressive training, without requiring extensive aerobic workouts or calorie expenditure. Adjustable intensity: Equipped with an adjustable intensity knob that gradually increases training difficulty to match your fitness level. Practical use scenarios: Daily routine at home: Integrate into morning or evening routines to support respiratory health as part of regular fitness. Athletic training: Use during warmup or conditioning to bolster endurance for activities such as running, cycling, or swimming. Gentle rehabilitation or gradual improvement: Suitable for steady, progressive lung capacity development at home. Key attributes: Function focused on lung capacity and respiratory health, simple adjustable resistance, compact homeuse design suitable for family use, and performancedriven for progressive training.