Bests & Worsts Reviews from Amazon

Love these things. The "Mac Daddy" of the 3M filters (filters damn near every contaminant). They are slightly harder to breath through than a P100 filter (the particulate only filters) but you wouldn't notice unless you were comparing one against the other. These are the only filters I use now because I can use them with, basically "everything" - which is to say, lead, dust, mold, asbestos, pesticides and Clorox (bleach). 923's are simlar but the 926's include a couple of additional gasses so I figure what the hey, at (roughly) the same price why not go with the "Mac Daddy?"