Saw a test: ambient co2 is 42x ish ppm
Inside mask 10,000+ ppm
Good for high brain function. No?
Old Sea Man,
You are Correctamundo.
The many tests on every video platform should convince everyone but the unconvincable.
There are doctors and neurologists coming out and warning against them for the fact they can cause permanent brain damage. I can't spare any I have left.
