The MILWAUKEE HEPA Filter is compatible with the M18 FUEL Compact Vacuum (0940-20). This Certified HEPA filter is easy to install and captures 99.97% of all particles greater than 0.3 microns for fine dust collection. This product contains one HEPA Filter and one foam pre-filter, which are both washable and are designed to be used together on the M18 FUEL Compact Vacuum for optimal performance.