This DEWALT cordless fan is very popular. What we like about this fan is that it can be used as a corded or cordless fan. The extension cord isn’t included in the pack, which is a shame, but we feel it is good to have the option for those who need to use it for prolonged periods of time. There are multiple hanging options too – the cordless fan can be hung on the wall, wall mounted or can stand on its own. This is the perfect fan for a jobsite and has 20V of power. It also has a variable speed, so you can set the air flow speed to suit the job at hand. At maximum speed you will get around 7 hours of run time at maximum speed.