Answers:
It depends on the warmth of the atmosphere carrying the wet haze. The hotter the heavens the more dampen spray it can pass. Patients are deliver at any one of two temperature - those who are intubated next to the tube sitting down departed their enthusiastic cords hold furnace level of humidified nouns deliver to them as their usual warm mechanism are bypasses (naspharynx). Those who are have oxygen deliver via CPAP or masquerade it is at a lower warmth as the long-suffering is competent to reheat and humidify the heavens via their nasopharnxy themselves.
Optimal humidity is 44mg h20 per litre at 37 degree centigrade. So it would depend on how plentiful litres of flow be human being given.