Oxygenation is achieved by providing an increased FiO2 in the air<unk>  to the patient. The constant flush of the upper airway creates a reservoir that reduces room-air entrainment to such an amount that it becomes a true fraction of inspired oxygen as set by the device. Ventilation Through a nasal cannula a<unk> -flow system delivers<unk> s that approach (and can meet) total respiratory demand. This<unk> , being delivered though a small diameter delivery system and small-bore nasal cannula allows the<unk>  that would traditionally move slowly through the upper airway to move quickly and maintain a constant stream of fresh gas which effectively washes out upper airway dead space. This constant stream of fresh gas<unk>  creates an environment that assists exhalation effort by flushing the exhaled air out to maintain this reservoir of fresh air ready to be inhaled. Humidification The<unk> er the<unk> , the more important proper humidification and conditioning of the<unk>  becomes. Without humidity, the oxygenation and ventilation effects of<unk> -flow therapy would be quickly overcome by the negative impact that dry air has on lung tissue.
Heated humidified high-flow therapy
Hyperinflation therapy
Targeted lung denervation
Airway pressure release ventilation
Airway clearance therapy
Negative pressure ventilator
Bubble CPAP
Non-invasive ventilation