Disposable, tearresistant WunderBag MicroPrefilter can hold 40lbs of dust and debris for easy cleanup and continued vacuuming, The MicroMesh material retains strength when wet and is breathable, keeping suction strong, A 5ply filtration design captures extremely fine dust and slurry for the toughest job and exceeds EPA hazardous material removal standards when used with Dustless HEPA Vacs, By capturing the invisible dust your eye can not see, the WunderBag keeps debris where it belongs, in the bag and out of your Dustless WetDry and Dustless HEPA Vac filtration system prolonging vacuum life, When the filter is full, an easy peelandstick label seals the WunderBag opening preventing debris from escaping and keeps air clean, 5 Layers of filtration, Filters down to 99, 95, 2 filters per package, Dimensions: 12L x 3H x 9W, SKU: DTLS002