These Ultra Bags from Sebo are designed to give you optimum performance and filtration with Sebo vacuum cleaners. Clog Free Filtration The practically tear-proof, fleece fabric uses electrostatically charged microfibres to filter dust particles from the air stream which helps to prevent clogging. Perfect for Allergy Sufferers Sealing caps ensure that dust and dirt is locked in the bag for hygienic disposal, which makes these Ultra-Bags ideal for anyone with allergies. Additional Information: Box of 8 filter bags for SEBO AIRBELT E vacuum cleaners Compatible with E1, E1 PLUS, E1 KOMFORT, E1 PET and E3 PREMIUM 3.5 L for SEBO E machines