Title:
MASK
Document Type and Number:
WIPO Patent Application WO/2023/014108
Kind Code:
A1
Abstract:
The present invention relates to a mask. The mask comprises: a base part maintaining an external shape; an inhalation filter part formed to penetrate the base part and filtering inhalation; and an exhalation filter part formed to penetrate the base part at a position different from that of the inhalation filter part and filtering exhalation. The inhalation filter part has a suction force stronger than an air discharge force of the exhalation filter part.
Inventors:
CHOE JONG CHORL (KR)
Application Number:
PCT/KR2022/011548
Publication Date:
February 09, 2023
Filing Date:
August 04, 2022
Export Citation:
Assignee:
NOORIPLUS CO LTD (KR)
International Classes:
A62B23/02; A41D13/11; A62B18/02; A62B18/10
Foreign References:
| KR101959664B1 | 2019-03-18 | |||
| KR20180064337A | 2018-06-14 | |||
| KR101905431B1 | 2018-10-08 | |||
| KR20200023348A | 2020-03-04 | |||
| JP2858131B2 | 1999-02-17 | |||
| KR102422736B1 | 2022-07-20 | |||
| KR102422737B1 | 2022-07-20 |
Attorney, Agent or Firm:
KIM, Beom Joon (KR)
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