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Seems like these are the guys you'd want to work with:

https://www.apioptics.com/product-category/products/polarized-sunglass-demonstration-cards/glaredisplays-polarized-free-standing-displays/
...

As far as I can find, this is Zeiss's current clear, single vision lens selection, not including coatings, etc...

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It only mentions one SmartLife SV. If there is another one, I would be...

*Salutes a True Patriot* Your efforts are greatly appreciated by those of us that have yet to have access to such.

By the hard work of medical scientists and the grace of higher powers, we will hopefully not have to deal with this issue much longer. (my definition of "much longer" is less than the length with...

Two? I've only read about the "SmartLife Individual SV". What is the other one?

I wonder if MEK, and enough skill, could produce a decent repair?

Valves are a no-no for medical use of a mask. It defeats 1/2 of the purpose of the mask.

When in doubt, re-measure. A PD is not part of an Rx.

Is this a Canadism that I am not familiar with?

That is a rather interesting difference. I'd be interested in hearing why that is as well.

Fixed that.

and this is why I have reservations regarding operating completely from the cloud.

Regarding the loss of function of disposable N95 masks with repeated use, this table from a study of masks is rather convincing:


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*SN95 = Surgical N95, it's a special type of N95 that...

This is a huge one with me. People that are getting a 'nice' frame want a 'nice' case to go with it. What is so hard to understand about that?

As someone with an MA in psychology, I have to say that I find the potential for any tint or filter to have any impact on Capgras Syndrome (this is the proper spelling) to be essentially absurd....

... Do you often undress rats? Which raises ever more questions. Why are the rats wearing clothing? Are they your rats or just random rats? etc...

I thought it would be prudent to share these links:

https://www.cdc.gov/coronavirus/2019-ncov/hcp/ppe-strategy/decontamination-reuse-respirators.html
...

Those that have been specifically tested for efficacy at filtering out microbes, and meet FDA as well as NIOSH standards, are your best bet. In general, any N, R, & P type respirators, with a rating...

As long as the molecule that is responsible for the UV excluding properties has a sufficiently long half-life relative to environmental factors (all chemicals eventually degrade, even if it requires...

Decent cardboard for shipping seems to be getting more and more rare. It seems like most "shipping" grade cardboard has been downgraded to what used to be considered "packaging" grade cardboard,...

Handwriting a UPC code. Man, that is just evil.

"***hole."

This is really what I would love to say some days...

When, exactly, did it start?

And with that, this thread has officially jumped the damn shark.

My best suggestion is to reconsider your reconsideration.

The entire sphere of "Irlen" is just not something one really wants to get involved with in anyway unless they want to be involved in...