What is the primary purpose of a humidifier in oxygen delivery systems?

The primary purpose of a humidifier in oxygen delivery systems is to prevent drying of mucous membranes. When patients receive supplemental oxygen, especially at higher flow rates or in dry environments, the oxygen can strip moisture from the mucous membranes in the respiratory tract. This drying effect can lead to discomfort, irritation, and potential complications, such as increased risk of infection or airway blockage.

Humidifiers add moisture to the oxygen being delivered, which helps maintain the humidity levels in the airways. This is particularly important for patients who may need prolonged oxygen therapy, as adequate moisture helps keep the respiratory tract functioning properly and supports overall respiratory health. By providing humidified oxygen, caregivers can enhance patient comfort and reduce possible adverse effects associated with dry airways.