ultrasonic humidifier / warming / disposable / respiratory
auto-control oxygen humidifier
warming, disposable, respiratory, pediatric, servo-assisted
（ＨＦＮＣ）high flow respiratory heated humidifier is widely application in the high flow nasal oxygen therapy ,which is more advantage than the traditional oxygen therapy .
the characteristic analysis ：
１）the flow rate can be accurately adjusted ,according to the demand of patients.
> flow volume : 2 -80L/min
> increments of 1 L/min
2) O2 addition can be titrated according to the patients'demand
> FiO2 range from 21% to 100 %
> O2 flow up to 80 L/min
> Auto control the FiO2
3) the level of humidification can be approximately 100% and temperature of therapy have different 3 grade .
> dew point : 31 ℃ ,34 ℃ , 37 ℃ .