Q13.  How much PEP does the PEP Resistor provide?

A13.  With the PEP Resistor at its most “closed down” position, and during resting breathing, the maximum PEP pressure is about 4 to 5 cm H2O.  This is a modest amount of PEP that will help hold airways open and provide a little bit of “shear” force to help separate mucus from the airway surface.


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