The GSTC Lung Exerciser, your go-to partner for improved lung health, you can breathe easier every day. It helps you naturally increase your oxygen intake and lung capacity by improving your breathing muscles. With regular usage, this gadget promotes healthy breathing whether you are controlling asthma, recovering from illness, or simply looking to increase your endurance. Every breath counts with the GSTC Lung Exerciser, which is small, strong, and safe for people of all ages.