COVID - How to protect ourselves

[Kurt]

What Are The Best Materials for Making DIY Masks?

This article is the best I've found for telling us how effective different household materials are for creating DIY masks for protecting against viruses including those about the same size ad COVID. The research was done by Cambridge U.

https://smartairfilters.com/en/blog/best...mask-virus

One important note is that they all (except scarves) blocked at least 50% of the virus. That means they DOUBLE (or more) the chances of NOT getting COVID compared to not wearing a mask, assuming they are put on correctly or any cross contamination with hands.

When talking about viral/exponential growth, this reduction is very significant. And these numbers don't include the person wearing the mask from spreading a virus to others.

Vacuum cleaner bags can be pretty effective. However, they aren't easy to breath through. And the report doesn't include coffee filters or paper towels.

More from Smartfilters:
https://smartairfilters.com/en/blog/can-...particles/

This article explains why nano-particles (really small like COVID) actually are easier to catch in a filter than larger particles. Hint: They don't fly in straight lines.

Just how small is 0.3 microns compared to viruses? The coronavirus measures approximately 0.1 microns in diameter, so 3 times smaller than measured in our test. However, 0.3 microns is an important size to test, because 0.3 micron particles are the most difficult to capture.

The crazy reality is that particles smaller than 0.3 microns are actually easier to capture. Don’t believe us; believe the data. Here’s the science behind it

But if we zoom down to the really small particles—like nanoparticles—things start getting weird. Nanoparticles are so small that they bounce around like a pinball when they hit gas molecules. (Scientists call this Brownian Motion.) That means they fly in random zigzag patterns.