US 11,738,220 B2
Mask device
Youngjun Kim, Seoul (KR); Nameun Cho, Seoul (KR); and Haeyoong Chung, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Nov. 4, 2019, as Appl. No. 16/672,940.
Claims priority of application No. 10-2018-0169622 (KR), filed on Dec. 26, 2018; and application No. 10-2019-0089154 (KR), filed on Jul. 23, 2019.
Prior Publication US 2020/0206546 A1, Jul. 2, 2020
Int. Cl. A62B 23/02 (2006.01); A62B 18/08 (2006.01)
CPC A62B 23/025 (2013.01) [A62B 18/084 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A mask device comprising:
a mask body including
a front cover to form an outer appearance of the mask body,
a rear cover coupled to the front cover to define a space between the rear cover and the front cover, the rear cover located in front of a user's nose and mouth when the mask device is worn by the user, the rear cover including at least one inlet and at least one outlet located below the inlet, and
at least one partition plate disposed between the rear cover and the front cover, the at least one partition plate includes a first partition plate and a second partition plate, the first partition plate being disposed above the second partition plate and the second partition plate being disposed to partition the space between the rear cover and the front cover into an upper space and a lower space, and
a first air cleaner and a second air cleaner to filter outside air sucked in from an outside environment and to supply the filtered air to the upper space of the mask body, the first air cleaner coupled to one side of the mask body and the second air cleaner coupled to an other side of the mask body,
wherein the upper space of the mask body is in communication with the first air cleaner, the second air cleaner, and the at least one inlet, and the lower space of the mask body is in communication with the at least one outlet.