ncludes HEPA Filter, 99.99% efficient on particulates 0.3 micron in size, with true bag-in/bag-out filter disposal system for safely removing and replacing the filter without detaching the hose. The HEPA filter may be easily accessed by removing the exhaust cover for field leak testing by a certified technician. A carbon filter is required (sold separately). An accessory for the Demonstration Hood, XPert Balance Enclosure, Protector XVS Ventilation Station or Protector Work Station, the FilterMate uses a HEPA filter, carbon-based filter or a combination of both filters to remove hazardous powders, particulates or vapors from the exhaust air stream, returning filtered air to the environment. No ducting to the outside is required.?? FilterMate Portable Exhausters are available in models that use a HEPA filter, a carbon filter or both HEPA and carbon filters. Labconco ventilation specialists use an exclusive computerized modeling program that compares NIOSH data with your chemical usage to determine the right filter cell(s) for your application.