DESC: Be sure your HEPA vacuum is certified! The HEPA Vacuum from Dustless Technologies is certified and it provides many benefits you won't find in any other vacuum system. A lot of manufacturers claim to have a HEPA vacuum, but many are not certified. If OSHA walks onto your job site, and your HEPA vacuum is not certified, they will shut you down. One of the big advantages of the Dustless HEPA Vacuum is the optional Micro Pre-filter. It greatly extends the life of the main HEPA filter.