All resistances are given in Ohms.

Ambient: the RTD in the air outside the box.
Skin: the RTD on outer skin of the box.
Fan/Air: the RTD hanging in the air behind the fan inside the box.
Wall: the RTD taped to the inside wall of the box.

The resistor and fan were connected in parallel.
The voltage was held constant at 5 V.
The current was consistently 0.33 A.