【Highly Effective】Offers the widest range of inspiratory/expiratory resistance levels to meet anyone's needs. From low resistance for respiratory rehab patients, gradually increasing to a high resistance level for competitive athletes. Improves endurance, breath-holding, and shortness of breath.
【Easy To Use】Only one moving part. Turn the valve to the left to decrease the airflow in order to create more resistance and turn it to the right for less.
【Very Compact】only 4" tall - You can take it anywhere and use it anywhere (Pocket Sized).
【Flexible medical-grade silicone mouthpiece】 It is extremely comfortable, providing excellent fit and seal. Once in your mouth, you don't even need to handhold it.
【Highly Durable】Heavy-duty plastic construction and 100% rust proof.
【Immediate benefits】It will open the airways into your lungs that have been partially obstructed over the years, due to natural aging, pollution, poor physical condition, and smoking (if applicable).
【Long-term benefits】Will target and develop the respiratory muscles ( the diaphragm and intercostals) to help you inhale more volume of air/oxygen into your lungs and to exhale more carbon dioxide out.