What is the purpose of a humidifier in oxygen therapy?

The purpose of a humidifier in oxygen therapy is primarily to add moisture to dry oxygen. When patients receive supplemental oxygen, especially through a face mask or nasal cannula, they are often exposed to oxygen that can be very dry. This dry oxygen can lead to discomfort, dry mucous membranes, and irritation in the airways.

By using a humidifier, moisture is added to the oxygen before it is delivered to the patient. This helps to maintain the natural humidity of the respiratory passages, making it easier for the patient to breathe and reducing the likelihood of complications associated with dry airways. A humidified oxygen delivery system can significantly improve patient comfort and respiratory function, especially in patients who require long-term oxygen therapy or those with conditions that affect their ability to humidify inspired air, such as chronic obstructive pulmonary disease (COPD) or during the recovery from respiratory illnesses.

The focus on adding moisture highlights the critical role a humidifier plays in oxygen therapy, ensuring that the therapy is not just effective in delivering oxygen but also in protecting airway health.