The coarse dust filter mat made of high-quality synthetic fibers is made of 100% polyester. The progressive fiber structure uses the full depth for dust collection. The filter medium is compressed and thermally bonded towards the clean air side. It has a high dust storage capacity due to the progressive structure of the media. Testing for paint-wetting impairment substances by the Fraunhofer IPA ensures high quality. The coarse dust filter mat is ideal for coarse dust filtration with requirements for higher volume flows and high dust storage capacity. It can be used in air conditioning and ventilation devices as well as in painting technology.