Why might a patient require a humidifier when receiving oxygen therapy?

When a patient is receiving oxygen therapy, especially at higher flow rates, the oxygen can be quite dry because it is being delivered from a cylinder or concentrator that does not add moisture. This dry oxygen can lead to irritation and discomfort in the airway, potentially resulting in issues such as a dry throat, nasal passages, or even damage to the mucous membranes lining the respiratory tract.

Using a humidifier helps to add moisture to the oxygen being delivered, which helps to prevent the drying of the airway. This added humidity can aid in maintaining patient comfort during treatment and support the integrity of the airway. Humidification can also help with the clearance of secretions, making it easier for patients with respiratory conditions to breathe or manage their symptoms effectively. Overall, incorporating a humidifier into oxygen therapy enhances the overall quality of care for the patient.