EasySpeed iron makes your ironing easier and more effective with lots of steam to remove tough creases, a ceramic soleplate for easy gliding on all fabrics and scratch resistance, and a Calc Clean function for durable performance. This steam iron can be used with normal tap water and the calc clean slider makes it easy to remove any built-up scale from your iron. To maintain the performance of your Philips steam iron, you should use this scale clean function once a month when using normal tap water.