And that's the physical harm, not the psychological effect on children

Ed Driscoll:

UNEXPECTEDLY: The Harm Caused by Masks.

Evidence continues to mount that mask mandates were perhaps the worst public-health intervention in modern American history. While concluding that wearing masks “probably makes little or no difference” in preventing the spread of viruses, a recent Cochrane review also emphasized that “more attention should be paid to describing and quantifying the harms” that may come from wearing masks. A new study from Germany does just that, and it suggests that the excess carbon dioxide breathed in by mask-wearers may have substantial ill-effects on their health—and, in the case of pregnant women, their unborn children’s.

Mask-wearers breathe in greater amounts of air that should have been expelled from their bodies and released out into the open. “[A] significant rise in carbon dioxide occurring while wearing a mask is scientifically proven in many studies,” write the German authors. “Fresh air has around 0.04% CO2,” they observe, while chronic exposure at CO2 levels of 0.3 percent is “toxic.” How much CO2 do mask-wearers breathe in? The authors write that “masks bear a possible chronic exposure to low level carbon dioxide of 1.41–3.2% CO2 of the inhaled air in reliable human experiments.”

In other words, while eight times the normal level of carbon dioxide is toxic, research suggests that mask-wearers (specifically those who wear masks for more than 5 minutes at a time) are breathing in 35 to 80 times normal levels.

As John Tierney wrote late in February: The Real Science on Masks: They Make No Difference.

Masks were a boon to robbers and tyrants, no one else.

For a trip down memory lane, here’s a summary of what the “experts” were recommending back in August 2020, when everyone knew better:

From cloth coverings to plastic face shields, masks get varying reviews. Experts agree on this much: Wear one to help stop the coronavirus spread.

It’s basic cloth masks that the CDC recommends when we’re out in public. Health officials prefer that cloth masks, whether homemade or store-bought, are constructed from thicker material like quilting cotton and are a minimum of two layers. They should be washed frequently.

“Homemade cloth masks are fine,” said Rutherford.

Absolute, utter bulllshit, which they knew even before the first mask mandate was ordered. This was about obedience, not health.

And then there’s this reminder: