The typical pressure pop-off incorporated into most simple bubble humidifiers releases pressure above which of the following?
a. 760 mm Hg
b. 10 cm H2O
c. 250 kPa
d. 2 psig
ANS: D
Typically, the pop-off is either a gravity or spring-loaded valve that releases pressures above 2 psig.
Health Professions
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