Carbon & HEPA filtered enclosures, also known as filtered fume hoods, are ductless laboratory enclosures that remove hazardous fumes, vapors and particles from the laboratory. No installation costs since no ductwork is required. These ductless containment hoods are available in 24″, 32″, 48″, 60″, 72″ and 96″ widths. They can be used for chemical fume, dust & particulate removal, pharmaceutical powder handling, solvent or acid vapor control.