Which is not an obvious advantage of high pressure oxygen through cannula:
Bypassing nasopharyngeal dead space
Decreases need for intubation
PEEP
Hot and Humidification of air
High pressure oxygen through cannula: Oxygen supply system capable of delivering up to 100% humidified and heated oxygen at a flowrate of up to 60 liters per minute. This device increases the FiO2 (21-100%) and reduces the need for intubation. It also creates some amount of PEEP: 3-5mmhg