Genuine motor filter that cuts to size for Electrolux vacuum cleaners: Accelerator, Air Max/GREEN, Bolido, Clario, Classic Silence, Ergo Space/GREEN, Essensio, Excellio, Oxygen, Jet Maxx/GREEN, Twin Clean, Ultra Active/GREEN, Ultra One/GREEN, Ultra Silencer/GREEN, Viva Control, Viva Quickstop, ... Electrolux has specifically designed high quality filters to protect your vacuum cleaner’s motor from dust particles. The high grade of material, used for our genuine bags and filters, provides your vacuum cleaner with strong airflow and high suction power as well as a high filtration level and maximum dust retention. For optimum performance, filters should be changed every 5 vacuum bags. All filters should be replaced at least twice a year or when they become visibly soiled. Use of non original Electrolux filters may adversely affect the performance of your vacuum cleaner. This pack contains 1 original universal motor filter to cut. Electrolux filter reference is EF 54.