Before this 12 months, I asked the Ministry of Health why the governing administration won’t make greater efforts to advise the general public about the worth of better confront masks.
The inquiry was prompted by two things:
1. A review by University of Waterloo mechanical-engineering researchers revealing extremely severe variances in the ability of masks to block the transmission of aerosols. A little a lot more highly-priced K95 and N95 masks give considerably greater protection than surgical and cloth masks.
2. Incontrovertible proof that COVID-19 is transmitted as a result of aerosols. You can find a expanding record of scientific