@rchusid So, since most schools suffer from being ALL 3 - crowded, enclosed, AND poorly ventilated - we should expect CDC, state Boards of Education, and local School Committees to quickly enact policies to protect our teachers' and children's current and future health!! ...Right?! Hello?
I won't hold my breath. Instead I'll just continue to stew over the lack of public health that defines this pandemic. 😠
@rchusid Now we just need @WHO to mention #N95, #N99, #P100, #FFP2, #FFP3, #P3, #KF94, and/or #KN95 #elastomeric #respirators -- the ones which *work* -- rather than just vaguely saying "masks".
Cloth & surgical junk masks are 30% effective -- better than nothing.
#N95 and reusable #P100 #elastomeric #respirators are >95% effective -- MUCH better. And they're cheap enough.
@swhunter7 @neroden @rchusid @masknerd@mstdn.
Wide spread use of masks, not respirators would significantly reduce transmission. It is almost as good as ventilation, filtration, and air disinfection. But the latter can be achieved without infringing on behavior and without the very annoying social barriers masks put between us.
Why isn’t WHO talking about these much more socially acceptable interventions?
@Don_Milton @swhunter7 @neroden @rchusid
One thing that I would like to add is that earloop respirators(such as the KN95 and KF94 formats) have no downsides when compared to surgical masks. They offer better filtration, easier to breathe in, more protection(2x-7x) and easier to talk in. So to me there is no "cost" to moving the minimum to an earloop format. N95's and headband respirators start to have some trade offs. Widespread use of earloops would even be more impactful at very little cost
@masknerd @Don_Milton @swhunter7 @rchusid
I found disposable #N95-style headband respirators a pain to take on and off.
However, the 3M 6300, which is a #P100 #elastomeric, was *easier* to take on and off as an earloop mask, because the neck part of the headband has a "snap" or fastener in the back. REALLY easy.
Earloop masks have more leakage around the sides than headband masks, according to studies, due to wiggling ears. And the stress on the ears hurts.
So I now recommend #P100s
@Texan_Reverend @neroden @masknerd @Don_Milton @rchusid
Tested 2/18/22. 99.73 filtration efficiency. Not too shabby! 😷
@masknerd @swhunter7 @neroden @rchusid
The trade offs between fit and filter flow resistance create, I think, some initially surprising results in how well they work as source control.
I’m currently a fan of ACI duckbill surgical N95s. Although the straps don’t last long before stretching out, they are very comfortable, have low flow resistance, and I personally passed a quantitative fit test with it (FF >200). As with all respirators- your fit may vary.
@Don_Milton @masknerd @swhunter7 @rchusid
Yeah, I think those tradeoffs are counterintuitive. The 3M 6100/6200/6300 ( #P100 ) seems to last for years, has very low flow resistance, has excellent fit (for my family), and has good source control with the add-on filter #604.
People don't generally realize that the more "industrial"-looking masks are typically more comfortable.
@Don_Milton @swhunter7 @rchusid @masknerd
Here's my priority issue:
Currently, in the United States, DOCTORS, NURSES, and medical staff are not being issued with #N95 or (reusable, cheaper in the long run) #P100. Same in the UK.
WHO needs to get the DOCTORS, NURSES, and medical staff doing the right thing to start with.
Medical offices listen to WHO. WHO needs to start talking about #respirators so that DOCTORS will do the right thing.
@Don_Milton @swhunter7 @rchusid @masknerd
Right now, doctors, nurses, and medical staff are routinely getting infected at work AND routinely infecting patients.
This is gross negligence, it's medical malpractice, and it's happening because WHO and CDC keep spreading disinformation.
WHO and CDC should be telling them that they need #P100 or #N95 #respirator #masks.
@Don_Milton @swhunter7 @rchusid @masknerd
UK Hospital acquired Covid. This should be ZERO. Instead, it's very high.
@Don_Milton @swhunter7 @rchusid @masknerd
A couple of weeks ago, I called 15 eye doctor offices. Exactly 1 was using proper PPE. About half were using no masks at all; the other half junky surgical masks.
This is gross negligence. Doctors are killing and crippling patients, because they're not using the right PPE. This is the fault of WHO.
@Don_Milton @swhunter7 @rchusid @masknerd
In general, I can avoid unsafe environments and "vote with my feet". But it starts creating severe problems when I have to avoid doctors and hospitals. This is unacceptable and it MUST change
@neroden @rchusid @masknerd @swhunter7
Worth noting too, that the range of ‘things’ that fall under ‘cloth mask’ is very wide, from multilayered, well made and fitted masks with quality fabrics to a single layer gaiter pulled over the face.
@masknerd @swhunter7 @neroden @rchusid
We made and used cloth masks until the end of 2021. Society’s changing attitudes toward universal masking and the advent of a much more contagious virus caused us to level up to CN95s (canadian earloop) We searched around to find good fits for the face sizes and shapes in our family and so far so good.
Shaft!
Why is no one talking about using UV-C to eliminate COVID (and all other air-bourne viruses) in enclosed spaces?
I use a portable, affordable HEPA / UV-C combination air filter in my home and in my gallery studio.
Columbia University has done all the research.
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