Pass catch disease protective face mask

The utility model relates to a pass catch disease protective face mask, including the facial cover body, connector and air inlet filtering device, the connector is provided with two to it is fixed with the both sides of the face cover body, the internal intermediate layer that is provided with of fa...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: WANG SONGQIANG, LI GUOWEI, CHEN XINRAN, HAN TONGWU
Format: Patent
Sprache:chi ; eng
Schlagworte:
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