How many different types of inhalers are there?

There are several types of inhalers, primarily categorized into two main groups: metered-dose inhalers (MDIs) and dry powder inhalers (DPIs). MDIs deliver a specific dose of medication in aerosol form and often require coordination during use. DPIs rely on the patient’s inhalation to disperse the medication in powder form. Additionally, there are nebulizers, which convert liquid medication into a mist for inhalation, offering another method for administering inhaled therapies.