Makita 199588-6 Dust Case with HEPA Filter Cleaning MechanismMakita 199588 6 The Dust Case with HEPA Filter Cleaning Mechanism is compatible with On Board Dust Extractors models DX08, and DX09 for OSHA Table 1 compliance and improved dust extraction. The HEPA filter captures 99. 75% of dust particles (size . 3 microns and larger). The high capacity dust container is clear and provides an accurate level indicator of collected material. The container also has the largest material holding capacity in its class