THE MOST POWERFUL IRON by Tefal STOPS CALC STAINS* The Ultimate Pure Steam Iron by Tefal brings together awesome steam power with an exclusive calc management system, for perfect ironing that goes the distance. The brand-new exclusive Micro-Calc Filter technology helps prevent residue or stains from calc while ironing, while a variable steam output up to 60 g/min ensures maximum efficiency and an extra-powerful 260 g/min steam boost tackles even the most stubborn creases.