Made of high quality material, more durable. Effectively filter dust and harmful substances Regular replacement of old filters helps improve the operation of vacuum cleaners Compatible with: for Philips FC8009 / 81 FC6723 FC6724 FC6725 FC6726 FC6727 FC6728 FC6729 Note: The data are all measured manually, please allow 1-3cm error Due to differences in light and display, there may be some color differences, please refer to the actual item received.