Nebulization is a process that uses a nebulizer to deliver medication into the lungs through mist inhalation. It liquefies and removes secretions from the respiratory tract. Nebulizers are commonly used to treat conditions like cystic fibrosis, asthma, and COPD. The nebulization process involves preparing the patient and equipment, adding medication to the nebulizer, and having the patient inhale the mist through a mouthpiece or mask. Precautions are taken for patients with unstable blood pressure, irregular heartbeats, increased pulse, or unconsciousness.