For powerful suction performance, the MicroMultiFleece filter achieves an efficiency rate of 99.9% and prevents the growth of germs and mold. Fine dust and allergens such as pollen and mites are effectively captured by the multi-layered structure. Additional layers of special, patented fleece neutralize odors and ensure a pleasant indoor climate. This product includes a dust seal and is suitable for AEG vacuum cleaner bags size 51, as well as for various devices from AEG, Delta, FIF, Primera, and Electrolux.