Masks don't Work

 

Masks don't Work

Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings— Personal Protective and Environmental Measures
Most influenza virus infections cause mild and self-limiting disease; only a small fraction of casepatients
require hospitalization. Therefore, influenza virus infections spread mainly in the community. Influenza virus is believed to be transmitted predominantly
by respiratory droplet However, in our systematic review, updating
the findings of Wong et al. (8), we did not find evidence of a major effect of hand hygiene on laboratory-
confirmed influenza virus transmission We did not find evidence that surgical-type face
masks are effective in reducing laboratory-confirmed influenza transmission, either when worn by infected
persons (source control) or by persons in the general community to reduce their susceptibility
https://wwwnc.cdc.gov/eid/article/26/5/19-0994_article

The Physiological Impact of N95 Masks on Medical Staff
Wearing N95 masks results in hypooxygenemia and hypercapnia which reduce working efficiency and the ability to make correct decision.
Medical staff are at increased risk of getting 'Severe acute respiratory syndrome'(SARS), and wearing N95 masks is highly recommended by experts worldwide. However, dizziness, headache, and short of breath are commonly experienced by the medical staff wearing N95 masks. The ability to make correct decision may be hampered, too. The purpose of the study was therefore to evaluate the physiological impact of N95 mask on medical staff.
https://www.clinicaltrials.gov/ct2/show/NCT00173017

Masks Don’t Work: a Review of Science Relevant to Covid-19 Social Policy
Authors: Denis G. Rancourt
Masks and respirators do not work. There have been extensive randomized controlled trial (RCT) studies, and meta-analysis reviews of RCT studies, which all show that masks and respirators do not work to prevent respiratory influenza-like illnesses, or respiratory illnesses believed to be transmitted by droplets and aerosol particles. Furthermore, the relevant known physics and biology, which I review, are such that masks and respirators should not work. It would be a paradox if masks and respirators worked, given what we know about viral respiratory diseases: The main transmission path is long-residence-time aerosol particles (< 2.5 μm), which are too fine to be blocked, and the minimum-infective-dose is smaller than one aerosol particle. The present paper about masks illustrates the degree to which governments, the mainstream media, and institutional propagandists can decide to operate in a science vacuum, or select only incomplete science that serves their interests. Such recklessness is also certainly the case with the current global lockdown of over 1 billion people, an unprecedented experiment in medical and political history.
https://vixra.org/abs/2006.0044