Inhalation anesthesia is a method of delivering anesthetic gases or vapors to a patient through the lungs. This technique allows for rapid onset of anesthesia, making it suitable for various surgical procedures. The gases are typically mixed with oxygen and inhaled, leading to a state of unconsciousness and lack of sensation. Common agents used in inhalation anesthesia include nitrous oxide and isoflurane. Anesthesiologists monitor the patient's vital signs throughout the procedure to ensure safety and adjust the concentration of the anesthetic as needed. This method is widely used due to its effectiveness and ease of control.