JPS561168A - External polluted air entering preventive mask - Google Patents

External polluted air entering preventive mask

Info

Publication number
JPS561168A
JPS561168A JP7630779A JP7630779A JPS561168A JP S561168 A JPS561168 A JP S561168A JP 7630779 A JP7630779 A JP 7630779A JP 7630779 A JP7630779 A JP 7630779A JP S561168 A JPS561168 A JP S561168A
Authority
JP
Japan
Prior art keywords
air entering
polluted air
external polluted
preventive mask
entering preventive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7630779A
Other languages
Japanese (ja)
Other versions
JPS5819302B2 (en
Inventor
Norio Masuda
Masaaki Masuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP54076307A priority Critical patent/JPS5819302B2/en
Publication of JPS561168A publication Critical patent/JPS561168A/en
Publication of JPS5819302B2 publication Critical patent/JPS5819302B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Respiratory Apparatuses And Protective Means (AREA)
JP54076307A 1979-06-19 1979-06-19 Mask to prevent infiltration of external contaminated air Expired JPS5819302B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54076307A JPS5819302B2 (en) 1979-06-19 1979-06-19 Mask to prevent infiltration of external contaminated air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54076307A JPS5819302B2 (en) 1979-06-19 1979-06-19 Mask to prevent infiltration of external contaminated air

Publications (2)

Publication Number Publication Date
JPS561168A true JPS561168A (en) 1981-01-08
JPS5819302B2 JPS5819302B2 (en) 1983-04-18

Family

ID=13601705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54076307A Expired JPS5819302B2 (en) 1979-06-19 1979-06-19 Mask to prevent infiltration of external contaminated air

Country Status (1)

Country Link
JP (1) JPS5819302B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100966464B1 (en) 2007-06-05 2010-06-28 박재철 Anti-gas mask of easy wearing and enhanced airtightness
WO2021161068A1 (en) * 2020-02-12 2021-08-19 Whiterock Ag Breathing protection device, which expands during the process of sneezing, coughing or blowing one's nose, for preventing infection with diseases that can be transmitted via respiratory air
JP6931955B1 (en) * 2020-11-30 2021-09-08 那須 正和 Mask and air mask
JP6931957B1 (en) * 2020-12-31 2021-09-08 那須 正和 Air introduction mask
JP6951596B1 (en) * 2021-02-01 2021-10-20 那須 正和 Mask module and mask structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100966464B1 (en) 2007-06-05 2010-06-28 박재철 Anti-gas mask of easy wearing and enhanced airtightness
WO2021161068A1 (en) * 2020-02-12 2021-08-19 Whiterock Ag Breathing protection device, which expands during the process of sneezing, coughing or blowing one's nose, for preventing infection with diseases that can be transmitted via respiratory air
JP6931955B1 (en) * 2020-11-30 2021-09-08 那須 正和 Mask and air mask
JP6931957B1 (en) * 2020-12-31 2021-09-08 那須 正和 Air introduction mask
JP6951596B1 (en) * 2021-02-01 2021-10-20 那須 正和 Mask module and mask structure

Also Published As

Publication number Publication date
JPS5819302B2 (en) 1983-04-18

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