With a foot-operated roller suction dial and a comfort handle, also copied by Miele on their later machines, SEBO's highly compact C series also uses the X series large disposable dust bag, loaded from underneath the machine to cut costs and extend accessibility. The design amasses awards from the Good Housekeeping Institute and was the first cylinder vacuum on the market to be credited with the British Allergy Foundation seal of approval among other organisations. By using the same capacity large dust bag as the X1 Automatic upright, this feature allowed buyers to independently choose between an upright vacuum or a more compact cylinder vacuum. Eventually SEBO launched the C1, C2.1 and premium C3 series with an electric power nozzle floor head, known as "ET-H." The C Series is long discontinued, but parts and accessories are still available.