het Mondkapjes Experiment van Del Bigtree,
0..
CO2 of Carbon Dioxide Nivo`s & de Mogelijke
Gezondheidsproblemen die ze Veroorzaken !
1.Oxygen
level of 8486 ppm when the son of Big Deltree wears a FACEMASK
2. The Faceshield on his son
shows an Co2 Oxygenlevel of 1541 ppm
3. Bigtree`s
son wearing a Cloth Mask shows Co2 Oxygen level of 4000 ppm Above the Critical Zone of 5000, which is more than 9000 ppm !
4. INDOOR AIR QUALITY, in the Classroom CO2 Levels should be No more
than 1.100 ppm !!!
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