These genuine synthetic vacuum bags are specifically designed to fit your ELECTROLUX Ultra One Mini vacuum cleaner. Synthetic bags provide long-lasting vacuum cleaning performance up to the moment the dust bag is full and ready for disposal. These high quality synthetic bags last 50% longer than traditional vacuum cleaner paper bags, they have a greater capacity, provide better filtration and are more resistant. Optimised cleaning performance of your vacuum cleaner helps make your home a healthier place. To maintain the best performance of your Ultra One Mini, vacuum bags should be changed regularly and all filters should be replaced at least twice a year or when they become visibly soiled. Use of non original vacuum bags and filters may adversely affect the performance of your vacuum cleaner. This pack includes 4 synthetic vacuum bags and one motor filter. ELECTROLUX synthetic dust bags reference: ES01.