The Bosch DF18 V-16 HEPA Filter works with GBH18 V-26 18 V EC Brushless Rotary Hammer’s dust collection system. The Bosch GDE18 V-16 Dust Collector works with GBH18 V-26 hammer to provide a self-contained dust solution for maximum mobility around the jobsite. The filter captures 99.97% of particles 0.3 microns and larger. According to independent testing, this integrated HEPA dust extraction system meets OSHA’s silica exposure limits for concrete drilling, averaged over an eight-hour day. It is a component in the Bosch PRO+GUARD™ system that provides dust-protection solutions to help users move toward compliance with the OSHA silica dust regulation. The filter frame makes installing the filter easy. It is intended for dry vacuuming only.