Self-inhalation filtering type breathing device capable of preventing particulate matter

The utility model discloses a self-inhalation filtering type breathing device capable of preventing particulate matter. The self-inhalation filtering type breathing device capable of preventing particulate matter comprises a four-hole connector and an air filter, wherein the air filter comprises a f...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	YU AIGUO
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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