Best Compatibility - Our filters are suitable for Miele TriFlex HX1 FSF vacuum cleaners. It can be used as a perfect replacement and its functions are compatible with the original. Clean multiple times: The vacuum cleaner filters are reusable filters for longer life and better filtration. EFFICIENT AND DURABLE - The pleated material of the replacement filter provides good breathability and efficient dust filtration, capturing ultra-fine dust particles. Make your vacuum cleaner last longer. Easy to install - The easy-to-install fine dust filter allows for quick and easy filter removal and replacement - by rotating the filter, the filter separates from the housing. [Perfect Compatibility] These fine dust filters are compatible with Miele TriFlex HX1, HX1 Pro, HX1 Cat Dog Stick vacuum cleaners [Package includes] 2 replacement HEPA filters and 2 motor protection filters [Washable and reusable] The HX1 FSF filter for Miele TriFlex is washable and reusable for longer life and better