Horizontal flat-fold filtering face-piece respirator having indicia of symmetry

Horizontal flat-fold filtering face-piece respirator having indicia of symmetry

  • CN 102,018,300 A
  • Filed: 09/20/2010
  • Published: 04/20/2011
  • Est. Priority Date: 09/18/2009
  • Status: Active Application
First Claim
Patent Images

1. a horizontal is rolled over filtering face-piece respirator, comprising:

  • (a) band tool;

    (b) mask body, it comprises front surface, first periphery and longitudinal axis;

    (c) nose clip, it centrally is fixed on the described mask body and is adjacent with first periphery of described mask body;

    And(d) mark, it is visible being adjacent on the front surface at described mask body with described nose clip on the longitudinal axis of described mask body.

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