This HEPA filter is compatible with Milwaukee® cordless wet/dry vacuums. The certified HEPA filter captures 99.97% of all particles greater than 0.3 microns, and is suitable for general debris, metal shavings, sawdust, concrete dust, and drywall dust. Users can install the tool easily, with twist and lock installation and the filter is both dry cleanable and washable with water. When washed, ensure the filter is dry before being used again. Not to be used for wet pick-up applications.