A fan control is a device that is used to regulate the speed of an electric fan. It can be used to adjust the speed of a fan in order to reduce noise, increase air flow, or maintain a specific temperature. Fan controls come in a variety of shapes and sizes, and can be used in both residential and commercial settings. In residential settings, fan controls are typically used to adjust the speed of ceiling fans, exhaust fans, and other types of fans. In commercial settings, fan controls are often used to regulate the speed of air conditioners, heaters, and other large fans. Fan controls are typically connected to the fan via a wire, and can be adjusted manually or with a remote control. They can also be programmed to automatically adjust the fan speed based on certain conditions, such as temperature or humidity. Fan controls are an important part of maintaining comfortable temperatures in any environment, and can help reduce energy costs.