The Dyson hot and cool fan range are the perfect all year heating and cooling solutions. For hot Summer days the Dyson cool fan helps regulate the temperature while oscillating for an even spread of cool air. For bigger areas, the Dyson cool tower fan blows cool air further than it's smaller counterparts. If dander or dust is an issue, consider the HEPA grade filtered purifier fans. All Dyson fans come equipped remote control and a timer function to regulate how long the fans stays powered on.