Looks like some type of bypass filter that is able to evaporate condensation, & fuel & recover the fumes through the PCV system. Not sure if this is a good idea with the Ecoboost engines or not as they claim they already have intake valve coking issues.
Kind of goes against the Catch Can theory.
http://cleanoilpower.com/applications/onboard-clean-oil-power-for-pickup-trucks/