Makita Filter 199989-8 Exhaust Gas Home High Efficiency Polypropylene Dust DESCRIPTION Over the course of its life, a filter goes through a lot of dirt and dust. You can wash them. but eventually, they just aren't clean anymore, no matter how much you wash them. When you are working with hazardous materials, the point of the filter is to keep you safe from inhaling things that aren't good for your body or lungs. So if your filter is looking tired, give it a rest and order a fresh replacement today. PRODUCTS THAT USE THIS PART Makita Cartridge Filter H Set DCL281F.