FR881222A - Dust respirator, with filter placed behind the wearer's head - Google Patents

Dust respirator, with filter placed behind the wearer's head

Info

Publication number
FR881222A
FR881222A FR881222DA FR881222A FR 881222 A FR881222 A FR 881222A FR 881222D A FR881222D A FR 881222DA FR 881222 A FR881222 A FR 881222A
Authority
FR
France
Prior art keywords
wearer
head
placed behind
filter placed
dust respirator
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.)
Expired
Application number
Other languages
French (fr)
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Application granted granted Critical
Publication of FR881222A publication Critical patent/FR881222A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR881222D 1942-04-15 1942-04-15 Dust respirator, with filter placed behind the wearer's head Expired FR881222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR881222T 1942-04-15

Publications (1)

Publication Number Publication Date
FR881222A true FR881222A (en) 1943-04-19

Family

ID=9370149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR881222D Expired FR881222A (en) 1942-04-15 1942-04-15 Dust respirator, with filter placed behind the wearer's head

Country Status (1)

Country Link
FR (1) FR881222A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107822232A (en) * 2017-12-05 2018-03-23 王冬艳 Electric mask backwashes all-in-one

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107822232A (en) * 2017-12-05 2018-03-23 王冬艳 Electric mask backwashes all-in-one
CN107822232B (en) * 2017-12-05 2023-08-22 王冬艳 Electric mask back flushing integrated machine

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