These replacement filter bags have been manufactured to fit the Shop-Vac Mighty Mini vacuum. The bags innovative design provides effective filtration for air passing through the machine, resulting in a clean air environment in your workshop, home, or business. The bags are designed for ease-of-use and are easy to install, while being completely disposable. Packaged with the 3 replacement filter bags is 1 secondary filter, the two working in tandem makes for even greater particle-capturing power. For dry clean-up only.