DIN EN 405:2009 Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking (includes Amendment A1:2009); English version of DIN EN 405:2009-08
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.
DIN EN 405:2009 Referenced Document
EN 132 Respiratory protective devices - Definitions of terms and pictograms
EN 13274-7 Respiratory protective devices - Methods of test - Part 7: Determination of particle filter penetration
EN 134 Respiratory protective devices - Nomenclature of components*, 2024-03-27 Update
EN 14387 Respiratory protective devices - Gas filter(s) and combined filter(s) - Requirements, testing, marking*, 2021-01-31 Update
DIN EN 405:2009 history
2009DIN EN 405:2009-08 Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking; German version EN 405:2001+A1:2009
2009DIN EN 405:2009 Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking (includes Amendment A1:2009); English version of DIN EN 405:2009-08
1970DIN EN 405:2002 Respiratory protective devices - Valved filtering half masks to protect against gases or gases and particles - Requirements, testing, marking