Mask

The utility model discloses a mask which comprises a body portion and a tying belt. The body portion comprises a mask body which comprises an inner layer, a middle layer and an outer layer, the inner layer is a fabric layer, the middle layer is a water-containing filtering layer, the outer layer is...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	CAO ZHENGQIANG
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING FIRE-FIGHTING HUMAN NECESSITIES LIFE-SAVING
Online-Zugang:	Volltext bestellen
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