Why Do Japanese People Wear Surgical Masks? It’s Not Always For Health Reasons -- Rocket News 24
Like kimono and T-shirts with English writing (sometimes vulgar, sometimes comical, always unintelligible), the number of people you’ll see in Japan wearing surgical masks is pretty surprising. Sure, Japan is a hard working society, and the spread of productivity-sapping sickness is always a concern at schools and workplaces, but that doesn’t seem like reason enough for the proliferation of facial coverings that sometimes has Tokyo offices looking more like an operating room.
Health concerns are only part of the equation, though, as recent studies have revealed multiple reasons people in Japan wear masks that have nothing to do with hygiene.
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My Comment: So typically Japanese .... they are being polite and considerate of others.