This document provides information on common inhaler devices used to treat respiratory conditions such as asthma and COPD. It lists short-acting relievers, preventers, and combination inhalers, along with their active ingredients and doses. Key points covered include: short-acting beta agonists used as relievers, inhaled corticosteroids as preventers, and combination inhalers containing corticosteroids and long-acting beta agonists for maintenance therapy. Equivalent doses between different corticosteroid products are also noted.