WORKSHOP Wet Dry Vacuum Filters WS23200F HEPA Media Filter For Shop Vacuum Cleaner (Single HEPA Media Filter For Wet Dry Vacuum Cleaner) Fits WORKSHOP 5-Gallon to 16-Gallon Shop Vacuum Cleaners Qwik-Lock Filter Fastening System makes removing and installing wet dry vacuum filters quick, easy and secure. 5-layer HEPA media captures pollens, allergens, fine particles, and everyday dirt. This material captures particles down to 0.3 microns at 99.97% efficiency The pleated cartridge filter design on this HEPA media filter allows a filter to have more surface area in a confined space to improve airflow and reduce clogging. Premium filter is ideal when using a wet dry vacuum cleaner indoors or to capture fine particles such as allergens, dog dander, dust mites, or pollen Replace even the hardest working wet dry vacuum cleaner filter twice a year to keep your shop vacuum cleaner functioning at its best