Yes, despite the many critics out there they have been proven to work as they insure the safety of others by preventing the transmission of body fluids from the wearer to others and visa versa.
To date, Hong Kong, which is home to more than 7 million people, has fewer than 170 cases and four deaths during this COVID-19 outbreak, while other countries and cities have reported hundreds, even thousands, of infections. Every citizen in Hong Kong wears a face mask every single day, anywhere they go. This has become their normal.
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