In the spirit of energy efficient appliances, Element magazine has an AirRAM vacuum cleaner to give away to a lucky reader. Up to 20 times more efficient than standard vacuum cleaners, the AirRAM is high performance, lightweight and cord-free. Powered by a rechargeable, lithium ion battery, one four-hour charge will provide enough power to vacuum the whole house. Unique bagless technology compresses dirt and dust into uniform bales, making disposal a breeze. The AirRAM retails for $499.95 and is available from Harvey Norman, Farmers and Noel Leeming. To win visit elementmagazine.co.nz, sign up for the weekly email newsletter and enter the draw.