Author Topic: Masks  (Read 160902 times)

Offline S209

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Re: Masks
« Reply #420 on: September 21, 2020, 11:52:01 PM »
Besides for that, I feel like I'm breathing stale air
Why do you say besides for that? That is probably included
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Offline EliJelly

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Re: Masks
« Reply #421 on: September 22, 2020, 12:46:17 AM »
Why do you say besides for that? That is probably included
I always find myself lowering it below my face to grab a quick dose of fresh air before it suffocates me

Offline S209

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Re: Masks
« Reply #422 on: September 22, 2020, 08:23:18 AM »
I always find myself lowering it below my face to grab a quick dose of fresh air before it suffocates me
As the article points out, it’s probably psychological. Which is valid.
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Offline aygart

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Re: Masks
« Reply #423 on: September 22, 2020, 08:24:50 AM »
I thought that people weren’t giving it a fair shot. I suspect it is a combination.
You need to get a bit out of your own 4 amos.
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Offline S209

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Re: Masks
« Reply #424 on: September 22, 2020, 08:52:19 AM »
You need to get a bit out of your own 4 amos.
Because people really are breathing their own carbon dioxide, and it’s not psychological? Got it
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Offline aygart

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Re: Masks
« Reply #425 on: September 22, 2020, 09:18:47 AM »
Because people really are breathing their own carbon dioxide, and it’s not psychological? Got it

Thank you for reaffirming
Feelings don't care about your facts

Offline NTorch

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Re: Masks
« Reply #426 on: September 22, 2020, 02:26:24 PM »
Quote
According to modelling conducted by Fugaku, the world’s fastest supercomputer, the disposable medical masks now almost ubiquitous on streets in many countries across the world constitute a far more effective barrier to respiratory droplets than cotton varieties, The Telegraph reports.

Cotton masks blocked just 80% of spray emitted when a person inside coughed, and the figure dropped to around 60% when smaller drops were analyzed. In contrast, the disposable masks studied blocked nearly all droplets and around 90% of smaller droplets, most of which escaped through the gaps around the edge of the mask.

Fugaku can perform more than 415 quadrillion computations a second.

https://www.israelnationalnews.com/News/Flash.aspx/516827

Offline S209

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Re: Masks
« Reply #427 on: September 22, 2020, 04:13:08 PM »
https://www.israelnationalnews.com/News/Flash.aspx/516827
It does seem more and more that medical masks are nearly as effective as N95s in preventing transmission, while cotton masks are less effective
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Offline EliJelly

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Re: Masks
« Reply #428 on: September 22, 2020, 04:22:30 PM »
It does seem more and more that medical masks are nearly as effective as N95s in preventing transmission, while cotton masks are less effective
The cheap 3 ply 50 in a box is considered medical?

Offline Yehuda57

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Re: Masks
« Reply #429 on: September 22, 2020, 04:44:46 PM »
The cheap 3 ply 50 in a box is considered medical?

Depends on which ones you get. Many will say on them "for non-medical use" although they may be of the same quality. For regulation and cost purposes they are not certified as such. You can do little tests like try blow out a candle, see how much water it can hold, and other tests to see how good the mask is.

Offline EliJelly

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Re: Masks
« Reply #430 on: September 22, 2020, 04:51:12 PM »
Depends on which ones you get. Many will say on them "for non-medical use" although they may be of the same quality. For regulation and cost purposes they are not certified as such. You can do little tests like try blow out a candle, see how much water it can hold, and other tests to see how good the mask is.
The easier it is to blow a flame out, the less water it holds, the better :)

Offline yuneeq

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Re: Masks
« Reply #431 on: September 22, 2020, 05:06:21 PM »
Depends on which ones you get. Many will say on them "for non-medical use" although they may be of the same quality. For regulation and cost purposes they are not certified as such. You can do little tests like try blow out a candle, see how much water it can hold, and other tests to see how good the mask is.

Many are pretty good for medical usage, in fact some of the masks I imported had better filtration than medical masks. But all the 3 ply masks aside for the big brands will say "not for medical use" due to Chinese export regulations.
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Re: Masks
« Reply #432 on: September 22, 2020, 05:13:06 PM »
Does anyone have specific brands they recommend? Of the non-candle-extinguishing type  ;)
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Offline EliJelly

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Re: Masks
« Reply #433 on: September 22, 2020, 05:19:36 PM »
Does anyone have specific brands they recommend? Of the non-candle-extinguishing type  ;)
You're probably looking for the ones that people tend to wear on their chin :)

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Re: Masks
« Reply #434 on: September 22, 2020, 05:24:59 PM »
You're probably looking for the ones that people tend to wear on their chin :)

The ones that make you high on your own carbon dioxide.
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Offline ExGingi

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Re: Masks
« Reply #435 on: September 22, 2020, 05:30:09 PM »
The ones that make you high on your own carbon dioxide.

Saran wrap
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Offline yuneeq

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Re: Masks
« Reply #436 on: September 22, 2020, 05:34:15 PM »
The ones that make you high on your own carbon dioxide.

https://tinyurl.com/y6aopl7b
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Offline NTorch

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Re: Masks
« Reply #437 on: September 22, 2020, 05:45:04 PM »
I always find myself lowering it below my face to grab a quick dose of fresh air before it suffocates me
Does anyone have specific brands they recommend? Of the non-candle-extinguishing type  ;)

So I have done a little experimenting with this because I give a daf shiur and lain during the week and on Shabbos and YT, so for what its worth here is what I found:

Surgical masks are the lightest but they dont stay on for an hour long shiur or for seven aliyos on Shabbos.

Cotton masks can be a bit stifling, but allow me to project better than KN95's

KN95's dont allow me to that loud, but give the most room to breathe and keep me cool because of the duck bill shape.

So I lained both days RH and what I did was I wore the KN95, then the cotton mask for laining and then immediately switched back to a KN95 after I finished laining. The cotton mask allowed me to amplify and I had the immediate cooling when done.

I do wear the KN95 when giving daf, but it seems to be less of an issue for people to hear me since unlike when I am laining, I face the tzibur when giving shiur.

Finally - my AC is a teacher in Beis Yaakov and she uses a mask guard under a cloth mask which keeps the mask from stifling her, but also does not ruin the seal.

Offline Yehuda57

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Re: Masks
« Reply #438 on: September 22, 2020, 07:14:04 PM »
Does anyone have specific brands they recommend? Of the non-candle-extinguishing type  ;)

https://www.amazon.com/wecare/?tag=cl03f-20&psc=1&smid=ATVPDKIKX0DER

Full disclosure, I work for the company that sells these, but I wore these the entire Rosh Hashana davenning comfortably. The tests described above have been performed by unsolicited reviewers. Plus they are individually wrapped which keeps them sanitary to throw in your kid's backpack, your pocket, your wife's purse, etc. And they come in kids and adult sizes.

Offline S209

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Re: Masks
« Reply #439 on: September 22, 2020, 08:21:37 PM »
https://www.amazon.com/wecare/?tag=cl03f-20&psc=1&smid=ATVPDKIKX0DER

Full disclosure, I work for the company that sells these, but I wore these the entire Rosh Hashana davenning comfortably. The tests described above have been performed by unsolicited reviewers. Plus they are individually wrapped which keeps them sanitary to throw in your kid's backpack, your pocket, your wife's purse, etc. And they come in kids and adult sizes.
Like this if you only clicked to see where @Yehuda57 works ;)
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