EN 14799:2007 Air filters for general air cleaning - Terminology
EN 1822-1:2009 High efficiency air filters (EPA, HEPA and ULPA) - Part 1: Classification, performance testing, marking
EN 1822-3:2009 High efficiency air filters (EPA, HEPA and ULPA) - Part 3: Testing flat sheet filter media
GOST R EN 1822-2-2012 history
2012GOST R EN 1822-2-2012 High efficiency air filters (EPA, HEPA and ULPA). Part 2. Aerosol production, measuring equipment, particle counting statistics