The BAUER™ Five Layer HEPA Filter protects your vacuum motor and filters out everyday dirt and dust that are found in homes, cars, and garages. This five layer filter is HEPA rated to trap 99.97% of dust at 1 micron. The filter is pleated for greater surface area and can be cleaned by spraying it off with a hose and water. Designed to fit BAUER™ wet/dry vacuums 5 gallon and larger. This filter also works with other select brands of wet dry vacuums.