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Apple Faceshield

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Re: Apple Faceshield

#581

Post by Teever »

dmurray wrote: post #578
mch82 wrote: post #576

Earlier quoted context omitted.

Going only off of the video I saw of Tim Cook with the shield... The entire shield is a clear plastic film. It’s held against the forehead using a fabric strap. The shield appears to be either die cut or laser cut, which explains the production speed. A lot of the face shields shown online are 3D printed with hard plastic components, which is a very slow process. The material looks a lot like the clear plastic film t…

3D printing seems crazy for a single sheet of bendy plastic that needs to be mass produced. Cutting them out by hand with a knife or a scissors would be better than 3d printing, never mind laser or die cutting.

I'm not sure what the person above is talking about. I haven't seen a single face shield design involving a 3d printed piece that didn't also require a sheet of bendy plastic cut to fit with that 3d printed piece.

Re: Apple Faceshield

#582

Post by roenxi »

Talanes wrote: post #423
roenxi wrote: post #396

Earlier quoted context omitted.

Yeah, that is pretty much what I'm imagining. If someone tried to smoke behind a facemask it seems pretty likely that most of the smoke will be caught behind the mask then drift out behind them like a comet trail, or move up/down. Only small wisps would end up traveling forward to where I'd be standing for conversation. The doses of virus would be diluted very rapidly which is helpful. Ideal scenario would be most of…

>If someone tried to smoke behind a facemask it seems pretty likely that most of the smoke will be caught behind the mask then drift out behind them like a comet trail, or move up/down. Only small wisps would end up traveling forward to where I'd be standing for conversation. You ARE the person in the faceshield (I assume you meant that instead of facemask), you don't control what other people do so assume they uncov…

How could me wearing a face shield help protect me from catching the virus? It'd be mostly useless; although obviously as mentioned it'd stop me touching my face as much as normal.

This is all about containing the spread.

Although I suppose in hindsight that explains why people were downvoting me.

Re: Apple Faceshield

#583

Post by pmilot »

bamboozled wrote: post #580

Likely not going to be a popular comment but what about the environmental impact of stuff like this? Are they reusable ?

From the article:

> You can sterilize and reuse your face shield. It has been evaluated to be compatible with the following chemicals [...]

Re: Apple Faceshield

#584

Post by varenc »

zimpenfish wrote: post #529
ehsankia wrote: post #527

Earlier quoted context omitted.

I'm curious, I've been seeing a lot of calls for 3D printing similar looking Face shields , which are very different from face masks. What is the use for this? Are they actually useful to health care professionals? Face mask + goggles fully covers the 3 places the virus can enter (mouth, nose and eyes), but these shields seem like they would be more useful for people who have the virus than those who don't.

> Face mask + goggles fully covers the 3 places the virus can enter (mouth, nose and eyes) I believe face masks are only 95% effective at best and that's only with a proper N95 which a lot of medical staff appear not to be able to get hold of. Hence they're wearing things like Buffs or cycling masks to make do. In that situation, having another layer that can stop droplets etc. from reaching the mask in the first pla…

An N95 respirator is rated to block at least 95% of 0.3 μm particles. It’ll do waaay better than 95% at blocking droplets! They’re much larger.

(though N99 and N100 respirators do exist)

Re: Apple Faceshield

#585

Post by jwandborg »

PinguTS wrote: post #535
dehrmann wrote: post #493

Earlier quoted context omitted.

For people not aware (I doubt that it's many in this audience), Santa Clara Valley is better(?) known as Silicon Valley. It's where Apple's based, and it's unpleasantly warm spot in the US for SARS-CoV-2 infections.

Please tell that the virus, if you take a closer look at even warmer spots like New Orleans. https://www.scientificamerican.com/article/map-reveals-hidde...

I think the parent meant "warm" as in "hot spot".

Re: Apple Faceshield

#586

Post by alexbanks »

brodie wrote: post #551
alexbanks wrote: post #291

Earlier quoted context omitted.

It feels as though arguments will be received with claims of "mental gymnastics", so I will just point out the differences in use and function between a face shield and an N95 mask. You're free to try and purchase a face shield if you'd like. Best of luck.

I know you’re being facetious, but I certainly hope he does no such purchasing.

Eh. That poster believes they've "figured it out", and those that've died just "didn't figure it out." Reasoning won't work, and unfortunately they're able to do whatever they want. I hope Apple has aggressively limited how much PPE they'll waste on civilians.

Re: Apple Faceshield

#587

Post by geon »

dmurray wrote: post #578
mch82 wrote: post #576

Earlier quoted context omitted.

Going only off of the video I saw of Tim Cook with the shield... The entire shield is a clear plastic film. It’s held against the forehead using a fabric strap. The shield appears to be either die cut or laser cut, which explains the production speed. A lot of the face shields shown online are 3D printed with hard plastic components, which is a very slow process. The material looks a lot like the clear plastic film t…

3D printing seems crazy for a single sheet of bendy plastic that needs to be mass produced. Cutting them out by hand with a knife or a scissors would be better than 3d printing, never mind laser or die cutting.

The printed part was the forehead-piece that the bendy plastic is mounted to.

Re: Apple Faceshield

#588

Post by danielovichdk »

Apple will continue to sell these after the crisis. With a fat Apple logo on it and the asian people will buy them for sure.

It will be a fashion wearable. No doubt.

Well thought of from Apple

Re: Apple Faceshield

#589

Post by londons_explore »

harimau777 wrote: post #577
neuronic wrote: post #567

Earlier quoted context omitted.

COVID-19 is very likely only marginally spread by aerosols (I take this from Robert Koch Institute, Germany information [1]), approximately 10% by contact spread and mainly by direct transmission of droplets. Faceshield therefore protects from the main transmission vector. It's not impossible to get infected otherwise, simply much less likely. Your main enemy are getting coughed/sneezed/talked at in close proximity.…

So this is likely a dumb idea, but if things got truly desperate I wonder if a snorkel mask would be a decent improvised protection. Your eyes and nose would be completely covered and your mouth is getting air from a direction/location that is unlikely to be in the "line of fire" from someone coughing or sneezing.

But if you have to breathe in infected air, doing so with your nose is far better than your mouth, since your nasal cavity has thicker membranes and a lot of mucus and hairs to catch particles, whereas through your mouth the particles are going straight into your lungs.

In fact, that effect might be so significant evolutionationary that it is the reason we have a seperate nose and mouth, rather than combining the two.

Re: Apple Faceshield

#590

Post by virgilp »

mbreese wrote: post #429
BalinKing wrote: post #419

Earlier quoted context omitted.

Isn't the recommendations by many countries to wear even cloth masks (e.g. the recent reversal by the CDC) _because_ there's a good chance COVID-19 can spread via large (i.e. non-aerosolized) respiratory droplets? (Not that it doesn't also spread in other ways, but removing even one vector would be better in this case than not doing so.)

I'm not sure why there is a recommendation to wear cloth masks in other countries (not discounting it, I just haven't looked). However, I believe that the primary rationale for the CDC switching their recommendation that everyone should wear masks has to do with the great numbers of asymptomatic carriers. In this scenario, wearing a mask is not designed to protect the wearer from others. Wearing an ill-fitting mask i…

> I'm not sure why there is a recommendation to wear cloth masks in other countries

You're spreading actively dangerous advice, that has already been proven wrong. DO look up why there is that recommendation.

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