A breathing trainer device such as Lung Exercise Device For COPD, Asthma, is a piece of equipment designed to assist individuals in improving their lung function and breathing skills.

Breathing Trainers for COPD, Asthma is a tool designed to help individuals with chronic obstructive pulmonary disease (COPD) improve their lung function and overall breathing ability. These devices typically involve a combination of resistance training, inspiratory and expiratory exercises, and other techniques to promote lung expansion and strengthen the muscles used for breathing.