Heat and Moisture Exchange (HME) is a vital medical device designed to provide humidified and heated air to patients with breathing difficulties during mechanical ventilation. The HME integrates a high-efficiency filter and a humidifier that captures warm, humid gas exhaled by the patient, releasing it back into the respiratory system upon inhalation.

Commonly utilized in Intensive Care Units (ICU), Operating Rooms, and Emergency Departments, these filters come in various sizes to accommodate different patient needs and ventilatory equipment. Proper functioning should be verified before use according to clinical indicators.