Airsoft mask Modification 2

So, I recently modified my airsoft mask so that I have ventilation to eliminate the fog problem.

(2) 25mm mini fans were daisy chained to eachother, then a small switch is soldered to the positive lead of the daisy chained fans and the 9v battery connector, interrupting the circuit. The negative lead is directly soldered to the 9v battery connector. I then hot glued the switch to the side of my earpiece, giving me easy access.