JPS61124645U - - Google Patents

Description

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention, Figure 1 is an exploded perspective view, Figure 2 is a vertical cross-sectional view of usage mode, Figure 3 is an enlarged vertical cross-sectional view of main parts, and Figure 4 FIG. 2 is an enlarged vertical sectional view of main parts showing another embodiment. 1 is a filter, 2 is an intake path, 3 is a liquid storage container, 4 is a mask body, 5 is a hose for breathing and breathing, 6 is a check valve, 3a is an exhaust port, and 4a is an airtight space.

Claims (1)

[Scope of Claim for Utility Model Registration] A liquid storage container 3 which is equipped with a filter 1 having breathability and water retention and is connected to an air intake path 2 that is open to the atmosphere, and which is worn on the face with the nose and mouth closed. Breathable air that communicates and connects the non-breathable mask body 4 and the exhaust port 3a of the liquid storage container 3 to the airtight space 4a formed between the mask body 4 and the face when worn on the face. A dust mask device characterized by comprising a hose 5 for use. The dust mask device according to claim 1, wherein the filter 1 is a layered body of base fabric 1A having air permeability and water retention properties, which is curved and shaped into a dome shape or a substantially dome shape. The liquid storage container 3 is such that a lower container 3A containing the filter 1 and an upper container 3B having a droplet sedimentation flow lower surface 3b are connected to each other via a narrow channel 3C. The dust mask device described in section. The dust mask device according to claim 1, wherein the air intake path 2 is provided with a check valve 6 at the opening end connected to the container 3 that allows only air intake.