Model: 7093 (pair)The 3M 7093 P100 is a HEPA filter sold by the pair for use on the 6000 and 7500 Series masks. It has a hard plastic case that makes it especially useful when sparks from welding or grinding might damage the 2000 Series filters. Also helpful where some water splash may occur, such as in asbestos abatement. As compared to the 3M 2091 Filter, you may also notice that the filter media is contained within the case. This keeps the trapped lead or asbestos dust particles out of reach.