That means the Black Hole can vacuum up 3.3 gallons of debris before it's necessary to empty it. The Black Hole's canister is rotationally molded in low-density polyethylene. This virtually indestructible material is unaffected by acid, alkalis or solvent. The Black Hole is available with more specialized cleaning tools than any other vacuum cleaning system to clean dirt off more surfaces than any other product of its kind - from high bookshelves to delicate electronic equipment. The Black Hole takes flexibility to the extreme.
Optional attachments are available to efficiently clean any surface.
Plus, we offer a HEPA option for hazardous materials pickup. If you're not completely satisfied with the Black Hole, we don't want you to keep it.