Shop-Vac® Ash Vacuum CleanStream® HEPA Cartridge Filter stops ultra fine dust and resists clogging. This filter fits 4041100 and 4041200 (model CAV150). Non-hazardous, non-toxic, non-flammable materials only. Do not use this filter for vacuuming lead paint debris. This filter is NOT intended for use under EPA Regulation 40 CFR Part 745 for lead paint material clean up. CleanStream® is a registered trademark of W. L. Gore and Associates, Inc.