Krypton KNF6113 16″ stand fan is especially useful for those who suffer from heat in the office or in a poorly ventilated room. When the summer months arrive being indoors can feel even hotter than being outside, often leaving you feeling overheated and sticky. It can be an inconvenience at work as being uncomfortably hot can be distracting and can affect your concentration. In the home, it can make everyone grumpy, irritable and unproductive. It can even affect your sleep.