What kind of masks protect from wildfire smoke?
With nearly 3000 acres burning in Califonia, health experts say N95 respirator masks offer the best protection against ...
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Group in Japan to develop, make masks that meet N95 safety level
To remedy the N95-standard face mask shortage at Japan hospitals caused by the COVID-19 pandemic, a medical institution and three companies in the Kansai region have teamed to develop and produce ...