Breathing Exercise Device for Lungs, Breathing Lung Expander, Mucus Removal Device, Hand-Held Breathing Trainers, Improves Lung Capacity

FEATURE: -Vibrates the airway, loosening mucus off the airway walls -Intermittently increase intra-bronchial pressure to keep the airway open during exhalation and ensure a smooth rise in mucus flow. -Attenuates the expiratory airflow and promotes mucus drainage. HOW TO USE: Step 1 - Relax your entire body, hold the device in one hand and place it in your mouth, keeping the mouthpiece level with the floor. Note that the opening in the device cover should be kept clear and not covered by other objects. Part 2 - Inhale slowly through your nose, holding your breath for 1-2 seconds. Step 3 - Exhale Breathe out slowly for as long as possible to clear the mouth of the mucus ejector. Don't puff up your cheeks as you exhale; keep your cheek muscles tense. This is essential for the proper use of the device, and you can place your other hand on your cheek as you exhale to ensure muscle tension. Step 4 - Repeat steps 2 and 3 - inhale and exhale, and hold your breath for an appropriate amount of time, avoiding rapid and vigorous breathing during this time. Package includes: 1PCS expectorator