It would probably work but one thing to consider is operational life span of those fans.
I need operate a fan over my reef tank continuously to offset the heat generated by powerheads and other circulation devices (rather than the room temperature of the home) and I used similar (but not the same) fans in the link you provided practically 24/7and they only last about 9-15 months (the fans I used cited a 12,000hr life span), and would require periodic replacement.
I eventually went to using a fan like this:
Sunlight Supply Air King 6 inch Clip on Fan
(though, depending on your set up, a fan of this type may or may not be easy to place or position).
Be advised that fans cool via evaporative cooling so your water evaporation rate will increase considerably.