Makita 199594-1 Dust Case with HEPA Filter Cleaning MechanismMakita 199594 1 The Dust Extractor Case with HEPA Filter (model 199594 1) is the replacement dust container for the Makita On Board Dust Extractor Attachment (model DX05 sold separately). The Dust Case includes an efficient HEPA filter engineered to capture 99. 97% of dust particles (size . 3 microns and larger) for improved dust collection. The high capacity dust container is clear and provides an accurate level indicator of collected material, and