Patent ID: 11931604
Assignee: LG ELECTRONICS INC.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 14:
15. A mask apparatus comprising:
a mask body comprising:
a front surface,
a rear surface disposed at an opposite side of the front surface of the mask body, and
a pair of air ducts disposed at left and right sides of the front surface of the mask body, respectively, wherein the mask body is configured to mount a pair of fan modules at suction sides of the pair of air ducts, the pair of fan modules being configured to supply external air to the pair of air ducts; and

a mask body cover that is coupled to the mask body and covers that pair of air ducts and the pair of fan modules,
wherein the mask body defines;
a cover coupling groove along an edge of the mask body, the cover coupling groove being coupled to an edge of the mask body cover, and
an air discharge portion that protrudes from the front surface of the mask body and surrounds the air exhaust hole,
a check valve configured to selectively block the air exhaust hole, and
a check valve cover that extends from a rear surface of the mask body cover to an inner space of the air discharge portion.