A particulate filter for use with the 3M™ Versaflo™ Powered Air Turbo TR-600 Series. The filter attaches directly to the turbo. 3M recommends the use of the TR-6700FC filter cover to help protect the filter from physical damage. The TR-6700FC filter cover is also used to hold the TR-6600 prefilter or TR-662 spark arrestor in place.