CEN/TC 79/WG 4 - Filters and absorption devices

This document specifies minimum requirements for powered Respiratory Protective Devices (RPD) incorporating a tight-fitting respiratory interface. It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency.
Escape RPD and filters for use against CO are not covered by this document.
Laboratory tests and practical performance tests are included for the assessment of compliance with the requirements.

This document specifies minimum requirements for powered filtering Respiratory Protective Devices (RPD) incorporating a loose fitting respiratory interface (RI). It does not cover devices designed for use in circumstances where there is or might be an oxygen deficiency.
Escape RPD and filters for use against CO are not covered by this document.
Laboratory and practical performance tests are included for the assessment of compliance with the requirements.

This document refers to gas filters and combined filters for use as replaceable components in unassisted respiratory protective devices (RPD) with the exception of escape devices.
Filters for use against CO are excluded from this document.
Laboratory tests are included for the assessment of compliance with the requirements.
Some filters complying with this document can also be suitable for use with assisted respiratory protective devices and/or escape devices. If so they need to be tested and marked in accordance with the appropriate European Standard.

This document specifies particle filters for use as replaceable components in unassisted respiratory protective devices (RPD) with the exception of escape devices and filtering face pieces.
Laboratory tests are included for the assessment of compliance with the requirements.
Some filters complying with this document can also be suitable for use with other types of respiratory protective devices and/or escape devices. If so, they need to be tested and marked according to the appropriate European Standard.
This document does not cover requirements concerning respiratory hygiene. Requirements for decrease of the microbiological hazards caused by the growth of bacteria and viruses on the filtration material are not determined.

This document specifies standard threads for respiratory protective devices and the description of test devices necessary for the assessment of some of the requirements.
This document does not apply to diving equipment and to positive pressure demand breathing apparatus.