mask

Abstract

The article to which the design relates is a mask that can be used, for example, as a respirator mask, a mask for non-invasive positive pressure ventilation (NIPPV) including CPAP (Continuous Positive Airway Pressure) and BiPAP (Biphasic Positive Airway Pressure), a mask for airborne infection prevention such as an N95 mask, a sanitary mask, a dust mask, or a gas mask. The mask to which the design relates has a bellows section, as shown in the "Reference Diagram Showing the Configuration and Usage," that conforms to the shape of the user's face and can change its internal volume in response to breathing. The bellows section is made of soft resin. The mask has a front plate made of transparent hard resin. The front plate 702 has a curved shape like a turtle shell. The user's mouth can be clearly seen through the front plate. A tube is connected to the front plate at its center, and belts are connected to it at four peripheral points via separate pins.

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