An efficient fluid cleaning
system. The efficient
system includes a first mechanism for changing the pressure of a fluid from a first pressure to a second pressure, the second pressure lower than the first pressure. A second mechanism distributes the fluid within an
evaporation chamber at the second pressure. The
evaporation chamber includes an
evaporation surface having capillary channels for dispersing oil about the evaporation surface via
capillary action to facilitate evaporation of contaminants from within the fluid. In a specific embodiment, the capillary channels are spiral capillary channels and the
system further includes a vent through a ceiling of the
evaporation chamber. The vent includes a valve biased in an open position and lacking a
cracking pressure. The valve prevents the escape of the fluid from the system but allows gases to escape from the system unencumbered. The evaporation surface has perforations therethrough that allow the fluid to pass through walls of the chamber and onto the evaporation surface. The perforations are distributed in at least two dimensions relative to the evaporation surface to facilitate oil dispersion about the surface and thereby maximize exposed surface area.