IonFlow 50 Signature utilizes the exquisite design form from Style, but with a new sophisticated appearance with natural amber color and a wood grain finish that will be a stylish solution for classic homes. The discreet amber decoration light gives a warm and classy feeling. Signature share the same fantastic performance and features as Style, Surface and Sky, efficiently eliminating the smallest and most harmful particles that cause the most severe health problems. Signature offers a cleaner and healthier air in an unbeatable combination of efficient, silent, ozone free, energy saving and easy to use, economical operation for every classic home in the world!