Back in June, I wrote about the mask paradox ... whether or not they are safe to wear:
https://sainthoward.blogspot.com/2020/06/the-mask-paradox.html
Now comes a doctor who performed a test showing that even donning multiple layers of masks did not noticeably lower his O2 saturation level:
https://www.ctvnews.ca/health/coronavirus/doctor-puts-on-six-face-masks-in-video-to-debunk-idea-that-they-lower-oxygen-levels-1.5025293
Stop your whining and put on a mask. And wear it properly.
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