The Bosch VAC090AH 9 Gal. Dust Extractor with Auto Filter Clean and HEPA Filter provides a complete package that is designed to help users move toward compliance with the OSHA silica dust regulation. The dust extractor delivers a maximum 150 cu. ft. of air-per-minute rate (CFM), with a sustainable 97 in. static water lift (maximum). The automatic on-board filter-cleaning system activates every 15-seconds to help maintain maximum suction power. The included HEPA filter captures 99.97% of particles at 0.3 microns and larger. The included fleece filter bag helps to protect the filter and provides the optimal containment of dry dust and debris. The dust extractor also has power tool activation that allows the tool to activate the vac and a Power Broker dial to match the suction force to application. Includes HDC200 universal SDS-MAX/SDS-plus dust collection attachment. The HDC200 is a flexible dust collection attachment for SDS-MAX and SDS-Plus Universal hammers for drilling into concrete. It is optimized for drilling diameters from 5/8 in. to 1-3/8 in. but can accommodate up to 2-1/2 in. If the brush ring is removed. The dust port is designed for Bosch 1-3/8 in. vacuum nozzle but can be used with either 1-1/4 in. or 2 in. vacuum nozzles when used with the appropriate adaptor. The system is universal and is designed to connect to a vacuum so that it can be used with any size hammer and can accommodate the full range of drill bit diameters and drilling depth.