Today, most offices have a central air conditioning system, however if you're seated in a cubicle far away form the ducts you may not get any cool air. Also, there are times when the AC doesn't work at all. We sweat it out working and living up to deadlines, who would ever want heat to just add to our woes?
Desk fans are a great way to cool the air around you and air circulation would improve as well - finally a chance to breathe! There are plenty of different kinds of desk fans as already mentioned; but, when it comes to the office, you should definitely use a USB desk fan - because, they're compatible with your PC or laptop.
Plug it into the computer and they charge up and blow cool air across the cubicle as well. Speed isn't a matter of worry as they come with various speed options from slow to fast or you can call it soft to strong.
That's not all, their plastic blades and neat covers provide your cubicle with a cool retro sort of look which could be pleasing to the eyes. It's better than staring at files and reports all day.
The USB Mini Desktop Fan shown below is a tiny yet powerful fan and doesn't need any batteries to run. It's on as long as it's connected to your computer - Of Course, it does have a on/off switch. You don't have to pull out the cable every time you want it off.
The Connectland USB Desk Fan on the other hand is a dual powered fan - either operating on a USB connection or 4 AA sized batteries. The fan has a switch for turning it on and off as well as a knob to control the speed (2 levels). What makes this fan all the more special is its ability to rotate 180 degrees or remain stationary; in addition to its horizontal movement, you can adjust its veritical position as well.
The IO Crest Mini USB Powered Table Fan is capable of a complete 360 degree adjustment and hence it's easy to control. Extremely long life as it's got a brush less motor. Just like the others it's got a on/off switch, located at the back in this case.