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Boulder Q: Are there common, easily available, inexpensive, masks that people might wear?

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Boulder Q: Are there common, easily available, inexpensive, masks that people might wear?

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A very nice mask is the N95, which has pretty good efficacy at blocking oral spread of viruses. They used them in Toronto during the SARS outbreak. They cost about $1 each. But note, hand washing has been shown to be more effective in stopping spread of respiratory viruses.

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