Circul Air has reinvented itself. Our ingenuity puts us in a position to offer a practical way to maintain your fire station’s state of the art status. Your Circul Air Drying Cabinet is a wonderful investment but, as with all investments, it must be maintained in order to remain viable and strong. Our Retrofit Head is a cost effective upgrade prolonging the life of your existing equipment. The Retrofit Head upgrade features a 50% decrease in drying time, and a 50% reduction in energy cost. Our control panel offers various settings for heat drying or an ambient air dry selection.