- First study is an all-Italian study still in preprint: CO2 levels whilst wearing a face mask go beyond the safety threshold. 40% of subjects with surgical masks inhale CO2 over the threshold. 99% of subjects wearing an FFP2 inhale CO2 over the threshold. The safety threshold is 5000ppm. The CO2 concentration with the surgical masks was measured to be 4965 ± 1047ppm. With FFP2, it was 9396 ± 2254ppm. It gets worse the younger the subject is. Up to 3 times the threshold in children wearing an FFP2, with an average of more than 2 times (12,847 ± 2898 ppm).
- Peer-reviewed study: Carbon dioxide rises beyond acceptable safety levels in children under nose and mouth covering: Results of an experimental measurement study in healthy children.
Tag: masks
Masks are bad for you, study confirms (yet again)
[T]he lack of negative correlations between mask usage and COVID-19 cases and deaths suggest that the widespread use of masks at a time when an effective intervention was most needed, i.e., during the strong 2020-2021 autumn-winter peak, was not able to reduce COVID-19 transmission. Moreover, the moderate positive correlation between mask usage and deaths in Western Europe also suggests that the universal use of masks may have had harmful unintended consequences.
Study: Correlation Between Mask Compliance and COVID-19 Outcomes in Europe
More than 150 Comparative Studies and Articles on Mask Ineffectiveness and Harms ⋆ Brownstone Institute
More than 150 Comparative Studies and Articles on Mask Ineffectiveness and Harms ⋆ Brownstone Institute
— Read on brownstone.org/articles/more-than-150-comparative-studies-and-articles-on-mask-ineffectiveness-and-harms/