How to Maintain and Ensure Maximum Security of your Portable Ductless Fume Hood Buy ductless HEPA and Carbon Filtered fume hoods to Protect users and the environment from hazardous fumes & vapors generated on the work surface. Get more information; https://www.globallabsupply.com/Ductless-Exhaust-Hood-s/1928.htm #PortableDuctlessFumeHood #GlobalLabSupply