I bought the white version of this fan: they have the same model number.
( 20 inch "Kool Machine " Box Fan is the official title, Model#CZ700T ).
I would say it worked adequately, but about the same as any other fan of the
After 6 months or so of indoor use, the fan started having a high-pitched squeal.
I thought perhaps the fan blades had come loose and needed tightening. Also
whenever I turned the fan on, I started sneezing and coughing ... the fan blades
had small clumps of dust on their surfaces, and edges. I thought I'd take the grills off, clean the blades, and tighten them. I 've done this many other times with other brands of fans and it is a pretty clear cut process.
With this fan I couldn't get the grills off to get to the fan blades. Out of desperation, I resorted to reading the instructions that came with the fan. The instructions have no information about how to take the grills off to get to the fan blades. The only instructions for cleaning say to " clean the surface with a damp cloth ", and periodically clean the grill with a vacuum. The only assembly instructions are for how to put on the feet ... there are no instructions for how to remove the grills so you can get to the fan blades and no diagram of fan parts, or how it is put together. I removed some screws that looked like they held the two sides of the grills together and was still unable to snap, pry, slide or otherwise take apart the grills. Perhaps a subtle clue is that the instructions list one of the features of the fan as " Safety Grills ". I guess that means there is no way to get to the blades, even when the fan is unplugged. There is no user manual on the Comfort Zone website. Comfort Zone customer service was unable to help but they were willing to try to sell me another fan. A search of Goggle shows other people have had this same problem without resolution. You can be sure I will not buy another Comfort Zone fan after all this disappointment over what should be an easy issue.