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I have a 3M filter number 2091 with a fab date in 2017. It's clearly stamped with NIOSH. Got a source on your claim? Edit 2: I missed the joke :)
by tmerc 6y ago
I have a 3M filter number 2091 with a fab date in 2017. It's clearly stamped with NIOSH.
Got a source on your claim?
Edit 2: I missed the joke :)
- SketchySeaBeast 6y agoI assume they are making a joke about how you initially wrote NOISH.
- ceejayoz 6y agoNOISH != NIOSH.