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EN 405:2001+A1:2009 Standard

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  Keywords:

#requirements #gas #valves #gases #cover

  Directive

Personal protective equipment Regulation ((EU) 2016/425)

  Last Official Journal reference

Friday 12th of June 2026

  Description:

Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking

  Purpose

This European Standard specifies the performance requirements, test methods and marking requirements for valved filtering half masks incorporating either gas or combined filters as respiratory protective devices except for escape purposes. It does not cover gas filtering half masks which do not have valves or are fitted only with exhalation valves. It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency (oxygen less than a volume fraction of 17 %). Laboratory and practical performance tests are included for the assessment of compliance with the requirements.

  Publication

Saturday 21st of April 2018

  Amendment

This standard is an amendment for "EN 405:2001"

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