Abstract: An arrangement for the exchange of filter hoses which are arranged in parallel in a filter box which is introduced into a filter chamber where contaminated gas enters through the sides of the filter hoses and purified gas leaves through their open ends. The filter box comprises a frame in which the open ends of the filter hoses are detachably fixed. The filter box is introduceable into a special chamber for the exchange of dirty filter hoses for clean ones by lowering the filter box through an opening in the chamber until the frame rests on supporting elements arranged in the opening. The detachable ends of the filter hoses are accessible from the "pure gas side," and the filter hoses, after being detached from the frame, drop down into the bottom of the exchange chamber for collection of the dirty filter hoses.