Title:
ORAL AND NASAL CAVITY SEPARATION TYPE MASK
Document Type and Number:
WIPO Patent Application WO/2021/179656
Kind Code:
A1
Abstract:
An oral and nasal cavity separation type mask, comprising a mask body and earmuff strings; the mask body is divided into a mask body upper portion (6), a mask body middle portion (7) and a mask body lower portion (8); the mask body upper portion (6) is connected to the mask body lower portion (8) by means of the mask body middle portion (7), and the mask body middle portion (7) is provided with an isolation structure. By providing the isolation structure on the mask body middle portion (7), the nose and oral cavity of a user are isolated from each other.
Inventors:
ZHAO YUANJUN (CN)
Application Number:
PCT/CN2020/128241
Publication Date:
September 16, 2021
Filing Date:
November 12, 2020
Export Citation:
Assignee:
ZHAO YUANJUN (CN)
International Classes:
A41D13/11
Domestic Patent References:
| WO2011140542A1 | 2011-11-10 |
Foreign References:
| CN205337713U | 2016-06-29 | |||
| CN204444335U | 2015-07-08 | |||
| US20120272973A1 | 2012-11-01 | |||
| CN212117178U | 2020-12-11 | |||
| CN206576343U | 2017-10-24 | |||
| CN106723522A | 2017-05-31 | |||
| CN104522908A | 2015-04-22 |
Attorney, Agent or Firm:
HFG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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