2018-01-23 Indian Scientists Invent Nose Filter to Protect Against Air Pollution
From VOA Learning English, this is the Health & Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth.…
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From VOA Learning English, this is the Health & Lifestyle report. In parts of India, it is not uncommon to see people wearing a mask over their nose and mouth.…