Maintenance inhalers are devices used to deliver medication that helps control chronic respiratory conditions, such as asthma and chronic obstructive pulmonary disease (COPD). These inhalers contain long-acting bronchodilators or anti-inflammatory medications that work over time to reduce inflammation and open the airways, making it easier to breathe. Unlike rescue inhalers, which provide quick relief during an asthma attack, maintenance inhalers are taken regularly, often daily, to prevent symptoms from occurring. Consistent use helps improve overall lung function and reduces the frequency of flare-ups, allowing individuals to manage their condition more effectively.