Inhalers, or “puffers,” deliver reliable and consistent doses of inhaled medicines.There are three types of inhalers: metered-dose, dry powder, and soft mist. A metered-dose inhaler (MDI) is a small, pressurized canister that fits inside a plastic, boot-shaped holder with an attached mouthpiece. A dry powder inhaler (DPI) contains only powdered medicine. There is no pressurized canister. Soft mist inhalers (SMI) use a spring to release a slow-moving mist when inhaled. Inhalers are portable-- they can fit in your pocket. They are also convenient—it only takes a couple of minutes to deliver a dose. .
Inhaled Medicines | Bronchiectasis and NTM 360 (bronchiectasisandntminitiative.org)