The HEPA media filter for wet/dry vacs is designed to tackle allergens, pollen, cold ashes, drywall dust and everyday dirt like sawdust, wood chips, jobsite debris and car or truck dirt. This efficient cartridge filter is made of HEPA media that captures up to 99% of all particles 0.5 micron and larger. Removing and installing replacement wet/dry vac filters is quick, easy and secure. This filter is compatible with all current CRAFTSMAN wet or dry vacs 5 gal and larger. To ensure maximum performance of your wet/dry vac, replace this filter on a regular basis.