3M N95 Respirator Filter, 5N11, Disposable, Helps Protect Against Non-Oil Based Particulates, Use With 3M 5000 Series Respirators or 6000 Series Gas and Vapor Cartridges, 10 Pack: Safety Respirators: Amazon.com: Tools &
3M Particulate Filter for 5000 to 7000 Series - 3M-7093
3M OV/P100 2-Pack Reusable P100 Chemical Carbon Filter in the Respirators department at Lowes.com