Drug-Free & Independent Therapy Mucus Remover- Applied OPEP, globally trusted therapy. Continued use can help loosen phlegm and promote coughing to better remove mucus.Effective For Many Respiratory Conditions - This lung cleaner is an invaluable tool for anyone suffering from respiratory issues, used for Asthma, Atelectasis, Bronchitis, Cystic Fibrosis, etc.Universal For Most Users - Our breathing aids come with two Stainless Steel Ball Bearings so that you can adjust to Minimal or Maximum Positive Pressure depending on your lung capacity, age, and current health.Quick & Easy To Use - Our mucus clearing device is simple in design and requires no refills & no batteries, easy to use and clean. Use it for just 5 - 10 minutes once or twice a day.Designed To Help Train Lungs - This lung exerciser device can facilitate gas exchange, improve lung strength, reduce breathlessness, and improve quality of life.<br>Note: <br>1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. <br>2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!<br>About Shipping: <br>1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly.<br>2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.<br>3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping!