The HME respiratory device filter is used in cases where the user breathes directly through the trachea.
Breathing through an external tube into the trachea bypasses the natural process of warming, humidifying, and purifying the air through the nose and mouth.
The HME filter humidifies, warms, and purifies the air from microbes before it enters the respiratory system.
The filter must be changed every 7 days for all users.
The filter must be changed every 48 hours for patients with chronic obstructive pulmonary disease.