Here is a full-face respirator mask for adult and child, tested and sufficient to protect also eyes, and at this time, it only exist in China :
The included PM 2.5 filters are not technically sufficient against viruses, just cut an ordinary medical mask FFP2 into 3 pieces to create an equivalent sized filter as the one PM 2.5.
The breathing valve adds a certain comfort to wearing a mask, and the protective visor is simply brilliantly airtight by really molding closer to the face from the upper part of the mask.
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