General description The 4-piece HEPA filter replacement accessory set is designed specifically for Rowenta X-Force Flex vacuum cleaners, including models RH9878, RH9898, RH9958, and RH99F1. This set includes two pre-motor filters and two post-motor filters, ensuring effective dust protection and improved suction power for pet hair, pollen, dust mites, and large dust particles. Technical specifications Compatible with reference: ZR009007, ZR009008 Compatible models: RH9878WO, RH9879WO, RH9898WO, RH98A8WO, RH98A9WO, RH98A7WO, RH98COWO, RH9958WO, RH9958WA, RH9959WO, RH9990WO, RH99A9WO, RH99F1WO Installation The filters are designed for easy installation and removal, providing convenience while meeting your cleaning needs. Usage To maintain optimal performance, it is recommended to replace the filters every 2 to 3 months. Regular cleaning and replacement of the filters will extend the life of your vacuum cleaner. Other information