well, every vent is a little different. Some of our BiPap machines would actually interpret this setting as 25 cmH2O of pressure on 10 of PEEP for a total of 25 cm H2O (therefore 15 cm H2O of driving pressure). Mostly, though, I'd say that, yes, 25 of pressure control on 10 of PEEP would yield a peak inspiratory pressure of 35 cm H2O.