1.Efficient dryer filter: the base filter 9164761 for Miele tumble dryers catches lint and filters it in the tumble dryer for clean and hygienic drying and extends the life of the tumble dryer. Note: Our sponge is vacuum packed. Please take out the sponge after receiving the goods and leave it for 1 hour to to its original shape. 2.Compatibility: The tumble dryer and heat pump dryer filter is an indispensable accessory and suitable for all Miele T1 models. Suitable for Miele tcb150wp Miele teb155 wp. (All models can be found in the compatibility list in the product images or in the product description.) 3.2Layer DesignMiele dryer lint filter is made of high quality foam. The composite material of a coarse layer and a fine layer works better to filter out the lint and dirt that arises during dryer operation. 4.Washable: the filter can be washed with water. This increases the usage time of the filter and helps the devices to their maximum performance.