Author Topic: Masks  (Read 10466 times)

Online yuneeq

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Re: Masks
« Reply #15 on: March 31, 2020, 10:17:13 AM »
A surgical mask is basically open from the entire top and sides and welcomes all airborne particles. N95 masks, even if poorly fitted, will be a much tighter fit around the face, and even if not sealed 100%, will significantly reduce airborne particles compared to surgical. IMHO.

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Re: Masks
« Reply #16 on: March 31, 2020, 10:19:53 AM »
Question is if you won't, does the N95 still give some level of protection?
Yes but how much I have no idea.
I had to wear respirator masks for many months. Even a perfectly fitted one is not 100%.
With a beard a fitted mask (N95) will still fit better than a surgical mask. It still filters better so based on that I would say yes but that is only a guess.
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Offline AsherO

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Re: Masks
« Reply #17 on: March 31, 2020, 10:22:07 AM »
Question is if you won't, does the N95 still give some level of protection?

What are bearded Hatzalah members wearing?
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Offline Ergel

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Re: Masks
« Reply #19 on: March 31, 2020, 10:39:42 AM »
Wait, so what is KN-95 mask?
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Offline AsherO

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Re: Masks
« Reply #20 on: March 31, 2020, 10:41:26 AM »
Wait, so what is KN-95 mask?

A gimmick?
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Offline Ergel

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Offline AsherO

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Re: Masks
« Reply #22 on: March 31, 2020, 10:57:02 AM »
https://multimedia.3m.com/mws/media/1791500O/comparison-ffp2-kn95-n95-filtering-facepiece-respirator-classes-tb.pdf

Nice. So force applied being much higher for KN95 means what? That the mask is theoretically tighter but also much less comfortable?
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Offline how

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Re: Masks
« Reply #23 on: March 31, 2020, 11:14:12 AM »
A surgical mask is basically open from the entire top and sides and welcomes all airborne particles. N95 masks, even if poorly fitted, will be a much tighter fit around the face, and even if not sealed 100%, will significantly reduce airborne particles compared to surgical. IMHO.
Yes but how much I have no idea.
I had to wear respirator masks for many months. Even a perfectly fitted one is not 100%.
With a beard a fitted mask (N95) will still fit better than a surgical mask. It still filters better so based on that I would say yes but that is only a guess.
So the reasoning is that a 3 ply mask is more porous so the air you breathe will come through the mask. An N95 is less porous so if there is any gap unfiltered air will come through that path of least resistance. So that's why a surgical mask may be better for a beard or if you were not fit tested. Many people still opt for the N95 and try to make sure it's tight but still, everything depends on the mask, beard person
If you do wear a mask make sure to wear it properly. Follow this link for instructions on how to properly wear and remove a face mask
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Offline how

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Re: Masks
« Reply #24 on: March 31, 2020, 11:17:31 AM »
Wait, so what is KN-95 mask?
Chinese version of an N95. very slight differences. Many countries have their own regulations. Similar to UL CE

Offline Yammer

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Re: Masks
« Reply #25 on: March 31, 2020, 02:14:00 PM »
Didn't see anyone mention N95 until your post. KN95 is not N95.
KN95 is Chinese standard and not equivalent.
+1
Wait, so what is KN-95 mask?
Chinese.

There have been many KN95s that have lost FDA approvals over the last few days.

In fact it's not even being allowed into the country now.

https://www.buzzfeednews.com/article/kenbensinger/coronavirus-kn95-masks-us-wont-import-china

Offline Ergel

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Re: Masks
« Reply #26 on: March 31, 2020, 02:34:26 PM »
Someone else is selling KN-95 masks with a certificate from victesting.com
Anyone know if the company is legit?
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Offline how

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Re: Masks
« Reply #27 on: March 31, 2020, 04:04:05 PM »
+1Chinese.

There have been many KN95s that have lost FDA approvals over the last few days.

In fact it's not even being allowed into the country now.

https://www.buzzfeednews.com/article/kenbensinger/coronavirus-kn95-masks-us-wont-import-china
Mine wasnt stopped so YMMV

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Offline shimino1

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Re: Masks
« Reply #29 on: April 08, 2020, 05:41:11 AM »
Osher Ad is selling them for about 10 shekel a piece.