Cách sử dụng
An inhaler is a medical device that helps people who have trouble breathing. It is a small canister with medicine inside it, which is pressurized. When people breathe in the medicine, it travels into their lungs, and it helps them breathe more easily. Inhalers are commonly used by people who have asthma or other breathing difficulties. They are used both at home and outside, and they are a portable and convenient way to get relief from breathing problems.