Dustless WunderBag Micro Pre-Filters™, 2 Pack

Works with most major brands of vacuums to add superior filtration
Seal for safe disposal of hazardous material such as silica, lead, asbestos, and hexavalent chromium
Rated at 0.5 microns of filtration for both airborne particles and water
Retains its strength and filtration while vacuuming water and slurry
Capable of holding 40 pounds of debris
2 dust collector bags per pack