The relief valve on a bubble humidifier serves which of the following functions? 1. It indicates when flow has been interrupted. 2. It protects the device from pressure damage. 3. It warns you when the water level is low
a. 1 and 2 only
b. 2 and 3 only
c. 1 and 3 only
d. 1, 2, and 3
ANS: A
The relief valve on a bubble humidifier serves to warn of flow-path obstruction and to prevent bursting of the humidifier bottle.
Health Professions
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