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Last week a customer sent us a question asking how long the 3M 2097 Particulate Mold Filters last. The answer is - it depends. Since it's a fairly common question, and "it depends" is such an unsatisfactory answer, we thought we'd explain it here in a bit more detail. The useful life of filters and cartridges is not fixed. In the case of the 3M 2097 P100 (HEPA) filters, we have two elements to consider: the filter and the charcoal layer. The P100 HEPA (which stands for High-Efficiency …

There is an old saying when in comes to safety that "the best mask is one you'll wear". And we agree. However, if there are a couple of masks comfortable enough to keep on while you work, then you've got some choices to make. For simple wood sanding, some folks recommend the old standard 3M 8210 particulate respirator. Lots of people would call this style a dust mask. Others would say that it's barely better than nose hair. It's an N95 which means it will filter out 95% of the partic …