Inhalers, also known as puffers or nebulizers, are devices used to help individuals with respiratory issues breathe easier by delivering medication in the form of a mist or spray. Bronchodilators, or simply bronchodilator inhalers, are a specific type of inhalers that open up airways to alleviate symptoms of asthma and chronic obstructive pulmonary disease (COPD). Other synonyms for inhalers include metered-dose inhalers, which measure the amount of medication delivered per spray, dry powder inhalers that dispense powdered medication, and spacers that help improve the effectiveness of inhaler medication. Optimizing the use of inhalers can greatly improve the quality of life for individuals with respiratory issues.