Talk:Mechanical filter (respirator)/Archive 1

Merge discussion
The various different standards are pretty paralel, and stuff about how exhalation valves work and what purposes the masks are used for are applicable worldwide, regardless of the local name of the applicable national standard. I suggest merging all the filtering facepiece respirator info to one filtering facepiece respirator article, and linking to this Mechanical filter respirator article for the parallel national standards (the same standards apply to elastomeric filter cartridge filters and PAPRs, so they are not specific to filtering facepiece respirators). HLHJ (talk) 02:18, 5 August 2020 (UTC)

OK, no comment after a dozen days; I'm going to do it. HLHJ (talk) 03:50, 17 August 2020 (UTC)


 * For future reference, you should have moved N95 mask to the new title rather than doing a copy-paste move. This would have reduced the number of redirects with extensive edit histories and talk pages, which is undesirable. John P. Sadowski (NIOSH) (talk) 04:59, 17 August 2020 (UTC)


 * Yes, you're right, John P. Sadowski (NIOSH). That was foolish of me. If I hadn't been merging two articles I certainly would have done it that way, but I didn't think. Is there any way to retroactively get the same effect, without making a complete mess of the edit histories? HLHJ (talk) 05:06, 17 August 2020 (UTC)


 * See Requests for history merge, you need to request an administrator to do it. But keep an eye on the discussion at Talk:N95 mask before making a request, to see what the outcome of that discussion is. John P. Sadowski (NIOSH) (talk) 05:19, 17 August 2020 (UTC)

Leftover content
I'm not sure where, if anywhere, this patent list from the merged N95 article should go:

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Selected patents
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Ideas welcome. HLHJ (talk) 04:24, 17 August 2020 (UTC)

Move discussion in progress
There is a move discussion in progress on Talk:N95 mask which affects this page. Please participate on that page and not in this talk page section. Thank you. —RMCD bot 04:07, 21 October 2020 (UTC)

Fractional collection efficiency
While that graph is very nice and intuitively understandable, the reduction to 0.5 at about 0.3 microns is a bit misleading, as typical respirators like N95 or FFP2 do only drop to 0.95 or 0.94 and higher quality ones like N99 or FFP3 only drop to 0.99. I would suggest changing the scale on the graph into 0.9 to 1.0, so the drop would end up at about 0.95 like it's the case with N95 respirators. 2A02:8071:283:1780:4923:D756:6E77:A498 (talk) 17:10, 4 May 2023 (UTC)== Move discussion in progress ==

There is a move discussion in progress on Talk:N95 mask which affects this page. Please participate on that page and not in this talk page section. Thank you. —RMCD bot 04:07, 21 October 2020 (UTC)

Fractional collection efficiency
While that graph is very nice and intuitively understandable, the reduction to 0.5 at about 0.3 microns is a bit misleading, as typical respirators like N95 or FFP2 do only drop to 0.95 or 0.94 and higher quality ones like N99 or FFP3 only drop to 0.99. I would suggest changing the scale on the graph into 0.9 to 1.0, so the drop would end up at about 0.95 like it's the case with N95 respirators. 2A02:8071:283:1780:4923:D756:6E77:A498 (talk) 17:10, 4 May 2023 (UTC)