A. Compatible with: 9164761 base filter is suitable for Miele T1 series heat pump dryers, such as TSD 443 WP, TSF 763 WP, TSA 213 WP, TWF 640 WP, TCH630WP, TKB140WP etc. Please refer to the model diagram for specific applicable models. B. Fine/Coarse Double-Layer Design: The filter for Miele consists of thick and thin foams. The fine filter is used to filter fine dust and small particles, while the coarse filter is used to filter heavy dirt and thick lint. The two-layer structure helps optimally filter out impurities, contributing to the dryer's performance and energy consumption. C. Product size: The dimensions of the dryer filters are 207 x 157 x 30mm. To ensure compatibility, please measure the size of the original dryer filter before purchasing. D. Washable & Reusable: The filter can be rinsed under running water and reused after drying. It is recommended to wash once a month. E. Replace regularly: The dryer filters are consumables, and the filter performance may decrease after 3 to 6 months of use. To protect the dryer, regular filter replacement is recommended.