Non-invasive ventilation Oxygen Delivery

* CPAP (continuous positive airways pressure)
** High pressure air/oxygen with a tight-fitting mask
** Positive pressure all the time to help keep airways open (split them)
** Used in acute pulmonary oedema and sleep apnoea
* BiPAP (bilevel positive airways pressure)
** High positive pressure on inspiration and lower positive pressure on expiration
** Used in exacerbations of COPD and ARDS
See: Oxygen Delivery
See conversely: Invasive Ventilation