The RIDGID OSHA compatible kit with HEPA-media filter and cyclonic pre-separator dust bags includes 1 RIDGID VF6000 5-layer allergen filter and 2 RIDGID VF3602 premium cyclonic dust bags. Breath easier indoors while cleaning with this premium filtration kit."When installed together (in select RIDGID vacs listed below), this kit is OSHA Silica Table 1 Compatible for certain dry dust collector control methods and HEPA-filtered vacuum control methods (1926.1153) within the limitations of their airflow performance. Included dust bags allow for cyclonic airflow, resulting in pre-separation and more equal distribution of fine particles and debris throughout the bag. Dust bag disposal is clean and easy with sealing collar feature. Included VF6000 filter is made from HEPA media. Compatible vacs listed below.. HEPA-level filtration is achieved when the VF6000 HEPA media filter and VF3602 cyclonic dust bag are installed together in select RIDGID 12 Gal. to 16 Gal. wet dry vacs. Removes 99.97% of all particles 0.3 microns and larger from the air. Kit is OSHA silica table 1 compatible when used with select RIDGID wet/dry vacs 12 Gal. to 16 Gal. and hand-held power saws for cutting fiber cement-board (with blade/wheel diameter of 4 in. or less) and handheld grinders for mortar removal (i.e. tuck-pointing) and uses other than mortal removal. Select RIDGID 12 Gal. to 16 Gal. wet dry vacs include: HD1200, WD1270/WD12700, HD1400, WD1450, WD1451/WD14500, WD1481/WD14800, HD1600, WD1640, WD1641/WD16400, WD1680, WD1681/WD16800, HD1800, WD1850/WD18500, WD1851/WD18510, WD18511, WD1950/WD19500, WD1956/WD19560, 1200RV/1200RV0, 1400RV/1400RV0, 1610RV/1610RV0, 1620RV/1620RV0. Dust bag disposal is clean and easy with its sealing collar. Kit includes 2 RIDGID premium cyclonic dust bags (VF3602) and 1 RIDGID 5-layer allergen filter (VF6000) made with HEPA media. For OSHA silica table 1 compatibility, employer/user must confirm that the airflow requirements as specified by the tool manufacturer are satisfied by the airflow rate from the RIDGID vacuum, all select vacs provide a minimum of 100 CFM. For OSHA silica table 1 compatibility, employer/user must check the grinding wheel diameter when selecting a RIDGID wet/dry vac to ensure 25 CFM per inch of wheel diameter criteria is met. Number of Pieces: 3. Debris Type: Sawdust. Debris Type: Drywall Dust. Filter Type: Cartridge. Debris Type: Dust Mites. Debris Type: General Debris. Debris Type: Fine Powders