When the weather starts to heat up, you'll be glad of a portable fan at your disposal to keep you cool. However, most fans then spend the winter months gathering dust. Unless you buy something like this Dyson that doubles as a heater and also purifies the air.
The Dyson Pure Hot + Cool air purifier is a fan for all seasons. It can bring the heat down in the summer, take the chill off in the winter and thanks to its HEPA filter, make that air cleaner all year round.
The model comes with a handy remote that magnetically attaches to the top of the fan, and the ability to choose between diffused or focused air flows. It oscillates up to 70 degrees and can be set to turn off after a period of time.