Because it dilates (widens) the airways in the lungs, Asthalin Inhaler is also known as a bronchodilator medication. Asthalin Inhaler works by acting on the beta 2 receptors in the lungs. Buy Asthalin Inhaler is used to treat asthma and chronic obstructive pulmonary disease (COPD), which can cause coughing, wheezing, and shortness of breath.