3M 2091 P100 Replacement Particulate Filters Respirator Protection NEW SEALED 2 Pair. This purchase includes the two packages of 2091 filters shown in the photos. Each package contains two filters for a total of four. The condition is New. The open filters were for photographing only and are not included. The buyer will receive two unopened packages. The packaging says 1998. I do not know if these filters have an expiration date as there is nothing in the literature included. See photos for details.
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