TMRN2 is an active breather system that maintains the air in the headspace that continuously introduces clean dry Nitrogen.As the dry N2 transfers through the headspace at RH < 1% the oil gives up its water striving to achieve equilibrium with the dry Nitrogen in the headspace.
Nitrogen is an inert gas so it will also removecombustible gases (ie CO2, C2H2, CO, C2H4, C2H6, CH4, H2) from the oil to reduce oxidation and fluid breakdown.