开云体育

It’s on the Filti.com website. ??

Connie

On Jul 2, 2020, at 10:11 AM, "Connie@..." <Connie@...> wrote:

?Jaya, what I read early on about the effectiveness of Filti is that it’s right up there with N95 mask materials. ?

I’ll see if I can find that again.?

Connie

On Jul 1, 2020, at 6:23 PM, Jaya Srikrishnan <ermabom@...> wrote:

?

This mask pattern apparently comes in many more sizes and is easily adjusted a bit up or down

Secondly, the key point of the mask is to protect others from the wearer of the mask. However, a recent study (and I can’t find it right now but it was quoted on my RSS feed today) did some studies on different materials. They used grains of table salt as a stand-in for droplets containing the virus (not the virus itself). They threw varying amounts of salt at masks made of different materials and of different construction. That found that a 2 layer tightly woven cotton mask did the best job of the ones they tested. That is rather limited but says that multiple layers and tighter weave are better than the alternative.?

There is some research that suggests that these larger droplets are not the only issue but that fine aerosolized droplets - which are way finer than table salt - also carry the virus and also are carried further away from the person. These happen with both breathing and talking. The heavier droplets tend to fall to the ground within a few feet of the mouth but these carry further.

While I believe Filti probably provides better protection than a woven cotton because it has way smaller holes if not stuck with pins and sewn through the part of the material over your mouth. I haven’t seen any testing of it. So I take that with a grain of salt while I continue to use it.

On Wed, Jul 1, 2020 at 4:56 PM Melisande R. Wolf via <melisanderwolf=[email protected]> wrote:

Ezra’s school has put out a detailed plan for bringing students back to campus in September (for which I am exceedingly grateful for a number of reasons).? Baird’s school hasn’t given us details yet (they don’t have the same options to put students in hotels due to location, but I sure hope they prioritize seniors at school because I don’t think he’s going to be able to write his comps effectively otherwise), but they have said that they’re working on a plan to get most students back on campus.? New Jersey is intending that students go back to school in the fall too.

?

All of which mean that I’m going to need to make more masks.? I’m not as concerned about Arielle because I have more ability to launder of otherwise take care of things quickly for her (bigger concern is that we still haven’t found one that really fits well enough to wear for an extended period of time, but I have some ideas), but I want to make sure I send the boys with enough masks (though Mac has explicitly said that they’ll make them available).?

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How many masks do you think I should plan to send with each kid?? Taking opinions about that, and reasons for opinions are good too.

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Slightly related, I saw a write-up of a paper that was recently published about the most effective mask materials.? I haven’t read the paper and don’t know if they looked at anything like a Filti layer, but the researchers concluded that 2 layers of quilting cotton did the best job of protecting other people (nothing included in the article I read about whether they looked at how well the mask protected the “wearer” dummy).

?

Melisande

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Jaya