Inhalation methods refer to techniques used to deliver substances directly into the lungs. Common methods include using inhalers, nebulizers, and vaporizers. Inhalers are handheld devices that release a specific dose of medication, while nebulizers convert liquid medication into a mist for easier inhalation. Vaporizers heat substances to create vapor, which can be inhaled for therapeutic or recreational purposes. These methods are often used for treating respiratory conditions like asthma or chronic obstructive pulmonary disease (COPD). Inhalation allows for rapid absorption of medication into the bloodstream, providing quick relief from symptoms. Proper technique is essential for effective delivery and optimal results.