If anyone is interested in buying such masks, search EBay using keyword
cool flow 8511
or
cool flow 8577
They are 3M products. Price are coming down significantly compared to five months ago. It is rated 80 hour usage. But it can last longer than that. Just be careful with the elastic while putting on or taking off mask. I wear one while jogging daily. And I am currently on my second mask. I bought a box of 10 so they could last until Covid 19 crisis is over.
"Women and cats will do as they please, and Men and dogs should just relax and get used to the idea" --- Robert A. Heinlein
21Frog, I second your "intended concept" of this method BUT knowing most casino pit critters, their preferred method will be the same means a doctor uses for a radical prostatectomy
"Women and cats will do as they please, and Men and dogs should just relax and get used to the idea" --- Robert A. Heinlein
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