Genuine Oreck DutchTech canister vacuum cleaner with electritech filtration system. This package of bags, made in Germany, contains 5 quality Celoc Hypo-Allergenic Vacuum bags with Oreck''s Saniseal system, 1 pre-motor filter, part 8207-10 (sits behind the vacuum bag in front of the motor) and 1 post motor exhaust filter part 82079-0. Oreck''s Saniseal system allows the user to completely seal the opening of the vacuum bags first, before removing the bag, which prevents the user from getting a face of dust and dirt when changing the bag. Oreck recommends replacing the pre-motor, and exhaust filters at least once every 5 bags, or whenever you open a new package of bags. The life expeatancy of your vacuum cleaners motor is a direct result of maintenance to your motor filter. The more often you replace the motor filter, the longer the vacuum''s motor will last you. Genuine Oreck DutchTech vacuum bags for the Oreck DutchTech models; DTX1100, DTX1200, DTX1300, DTX1400. Oreck Part Reorder Number ET511PK.