Features: Help You Breathe Properly The LungCare trains you to take slow, deep breaths that help open and clear up your airways. This in turn aids in preventing upper respiratory problems like mucus build-up, asthma, pneumonia, and COPD. Keep Lungs and Body in Good Shape The more you exercise breathing properly with LungCare, the more efficient your lungs become in delivering oxygen to your entire body. This helps you better resist aging and disease. Easy to Use Your objective is to inhale deeply and make the color-coded balls float in each column. Each ball represents the air youve breathed in: yellow means youve inhaled 600 ml cc, green with 900 ml cc, white with 1200 ml cc, and combined with 2700 cc. You can measure and record your highest inhaled effort. HOW TO USE: Insert the breathing tube to the air inlet. Make sure its securely attached. Then attach the mouthpiece to the other end of the breathing tube. Place the mouthpiece inside your mouth. Seal your lips around the mouthpiece tightly. Breathe in (inhale) slowly and deeply, with your lips still sealed tightly around the mouthpiece.