Portable Lung Capacity Abdominal Breathing Trainer with Adjustable Resistance Fitness Trainer Breathing Exercise Device Lung Exerciser Device Expands restores Lung Capacity Inspiratory Muscle Trainer

Instructions: Take out the resistance abdominal breathing trainer and rotate it left and right. Adjust the appropriate resistance intensity. Check if the mouthpiece is securely fastened, lightly bite down with teeth and close the mouth tightly to avoid air leakage. Slowly inhale through the nose until the lower abdomen expands completely, with a slight bulge in the abdomen. Apply pressure to the abdomen and slowly exhale through the mouth using the trainer. In the initial stage, focus on adaptation. Each set consists of deep inhalation and exhalation. Start with 10-20 sets and gradually increase to 30 sets or gradually increase resistance if it can be easily completed. Alternatively, training can be measured by duration, with 5-20 minutes of training per day based on individual fitness.