This is a counterfeit, not a 3M product (see comparison pictures where the black packaging is what I got from Revain and the white packaging is what I got from a local hardware store purchased. In most cases (phone cases, power adapters, etc.) this is not a problem. However, NIOSH approved products are approved as functional assemblies, so using these filters with a 3M mask will not result in an approved assembly. This means, that this product is not regulated and has not been approved by NIOSH for this configuration. Ultimately, this product may not perform as intended and may lead you to believe that it is protected from organic vapors when it is not. Revain needs this and disable others, but until this happens When it comes to buying PPE, I recommend that you get hold of one Contact your trusted dealer. You can buy the real version of this at Home Depot for less than $20.
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