What was found
DURING THE DESCENT, WE NOTICED WE WERE SMELLING SMOKE FUMES IN COCKPIT. WE SUSPECTED FUMES FROM STABILIZER WING HEAT AND TURNED THOSE OFF. THE ODOR PERSISTED ON AND OFF, AFTER THAT WE DECIDED BEST COURSE OF ACTION WAS TO CONTINUE DESCENT AND LAND, WE ALSO STARTED USING O2 MASKS. ONCE ON THE GROUND WE WERE ABLE TO TROUBLESHOOT PROBLEM FURTHER. THE COCKPIT BLOWER WAS CREATING THE SMOKE FUMES AND WAS INITIALLY MEL'D. MAINTENANCE REPLACED THE COCKPIT BLOWER, OPS CHECKED AND CLEARED MEL BEFORE THEY HAD ANY ADDITIONAL FLIGHTS.