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An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing includes an interior having a gas flow

An arrangement for separating a hydrophobic liquid phase from a gaseous stream includes a coalescer filter, a housing, a gas flow direction arrangement, and a liquid collection arrangement. The coalescer filter includes a non-woven media of fibers. The housing includes an interior having a gas flow inlet and a gas flow outlet. The liquid collection arrangement is positioned within the housing construction and is oriented for receiving liquid collected from the coalescer filter and drained therefrom. Methods for conducting the separations are also provided.

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1. An arrangement for use in separating a hydrophobic liquid aerosol phase, from a gas stream, during filtration of engine crankcase gases; said arrangement comprising:(a) a first stage coalescer filter defining a flow passageway and including a nonwoven fibrous bundle extending across the flow pass

1. An arrangement for use in separating a hydrophobic liquid aerosol phase, from a gas stream, during filtration of engine crankcase gases; said arrangement comprising:(a) a first stage coalescer filter defining a flow passageway and including a nonwoven fibrous bundle extending across the flow passageway and having a first upstream surface area; and, (b) a second stage filter comprising pleated media positioned downstream from the nonwoven fibrous bundle of the first stage coalescer; (i) the pleated media of the second stage filter having a second upstream surface area; (ii) the first upstream surface area being no more than 1.5% of the second upstream surface area.