Quote:
Originally Posted by GoodLife
Everyone should read this paper by two Doctors who are respiratory protection specialists. They looked at all the scientific papers on various types of facemasks and have some solid conclusions. They don't look at youtube videos of someone sneezing thru a tee shirt into a petri dish.
COMMENTARY: Masks-for-all for COVID-19 not based on sound data | CIDRAP |
I saw that YouTube video of the petri dish. Quite impressive actually and why not believe the results? Do you think YouTube video posters are fudging results? I guess that is a possibility.
I have been posting a YouTube video on several thread of a guy who spritzes water onto a mirror using a spritzer bottle. Water droplets go all over the mirror. Then, the guy spritzes water from the same spritzer bottle through a single layer of T-shirt material. Not one drop of water settled on the mirror. Not very scientific but sure as hell made an impression on me how one layer of T-shirt material blocked all those droplets from landing on the mirror.
I have been making home made masks out of Bounty paper towel (2 layers), a 2" strip of printer paper to make the mask 3D, one tissue folded in half, rubber bands and staples. Once all my materials are in place, it takes me about one minute to assemble the finished mask. I was curious to see if one layer of a Bounty paper towel blocked droplets on my mirror just the the one layer of T-shirt material blocked droplets in the video I explained above.
I conducted my very scientific (for me) experiment and low and behold.....not one droplet of water landed on my mirror as I spritzed water from a water spritzer on my mirror through one layer of Bounty paper towel.
Given that I use two layers of paper towel, the printer paper which sits in front of the mouth and one folded tissue, I know none of my droplets are escaping from my mouth or nose when I breathe, speak, sing, cough or sneeze. The mask fits very snuggly to my face so this is also a plus to protect others from my droplets. I don't know if I am an asymptomatic carrier of the virus which is why I wear a mask when I can not guarantee to social distance.
I hope people realize that home made mask wearing is to protect others around you and not the wearer of the mask. Wearing masks is to slow the spread of this virus.
As for this article, which I read read through, BTW, I took away one very important aspect of these doctors' conclusions: wearing home made cloth masks can block transmission of virus. These masks do not protect the wearer of the masks.
Gee, that is what I have thought all along.