It is an artificially moisture supplement which assist normal function and facilitate secretion removal. Failure to adequately humidify could result in tube or stoma blockage as secretions become dry and viscous, forming a crust around the tracheostomy.

The upper respiratory track (URT): Normally, the nose and upper airways humidify and warm inhaled air. With a tracheostomy, these structures are bypassed leading to dry, cold air entering the trachea, increasing the risk of mucus build-up, thicker secretions, increase risk of chest infection and airway complications. Such as: Dry sinuses, bloody noses (Nosebleed) and cracked lips.

Humidification should be considered over a 24-hour period much like positioning or nutrition.