Vacmaster VCFF Standard Fine Dust Cartridge Filter & Retainer, 5-16 GallonFor vacuuming household dirt and debris, and fine dust like cold ashes, cement dust and drywall dust. Captures particles down to 1 micron in size. Fits all Vacmaster Wet Dry vacs 5 gallon to 16 gallon (excluding model VWM510). Fits most Shop Vac Wet Dry Vacuum Cleaners (5 gallon and larger).* Captures 99. 97% of fine dust, pet dander, allergens & pollen For vacuuming household dirt and debris, and fine dust like cold ashes, cement dust and drywall