The Vacmaster VDB45 standard dust collection bag is designed for dry pick-up of household dirt, debris, and sawdust. This dust bag is intended for use on 4 to 5 gallon standard wet/dry vacuums and is compatible with most major wet/dry vac brands. Dust bags increase filtration by keeping smaller particles contained in the unit and making clean-up easier. For dry pick-up only. Includes (3) 4-5 gallon standard dust collection bags. Do not use the collection bag to vacuum hazardous or toxic materials. Do not vacuum anything that is burning or smoking, such as cigarettes, matches, or hot ashes.