usage class performance performance test particulate size approaching 100% retention test standard
0     primary filters    g1         65%    average value                                        >5µm      bs en779
1     primary filters    g2    65 - 80%    average value                                        >5µm      bs en779
2     primary filters    g3    80 - 90%    average value                                        >5µm      bs en779
3     primary filters    g4       90% -    average value                                        >5µm      bs en779
4   secondary filters    f5    40 - 60%    average value                                        >5µm      bs en779
5   secondary filters    f6    60 - 80%    average value                                        >2µm      bs en779
6   secondary filters    f7    80 - 90%    average value                                        >2µm      bs en779
7   secondary filters    f8    90 - 95%    average value                                        >1µm      bs en779
8   secondary filters    f9       95% -    average value                                        >1µm      bs en779
9           semi hepa   h10         85%    minimum value                                        >1µm     bs en1822
10          semi hepa   h11         95%    minimum value                                      >0.5µm     bs en1822
11          semi hepa   h12       99.5%    minimum value                                      >0.5µm     bs en1822
12               hepa   h13      99.95%    minimum value                                      >0.3µm     bs en1822
13               hepa   h14     99.995%    minimum value                                      >0.3µm     bs en1822

Table as JSON:
{"usage":{"0":"primary filters","1":"primary filters","2":"primary filters","3":"primary filters","4":"secondary filters","5":"secondary filters","6":"secondary filters","7":"secondary filters","8":"secondary filters","9":"semi hepa","10":"semi hepa","11":"semi hepa","12":"hepa","13":"hepa"},"class":{"0":"g1","1":"g2","2":"g3","3":"g4","4":"f5","5":"f6","6":"f7","7":"f8","8":"f9","9":"h10","10":"h11","11":"h12","12":"h13","13":"h14"},"performance":{"0":"65%","1":"65 - 80%","2":"80 - 90%","3":"90% -","4":"40 - 60%","5":"60 - 80%","6":"80 - 90%","7":"90 - 95%","8":"95% -","9":"85%","10":"95%","11":"99.5%","12":"99.95%","13":"99.995%"},"performance test":{"0":"average value","1":"average value","2":"average value","3":"average value","4":"average value","5":"average value","6":"average value","7":"average value","8":"average value","9":"minimum value","10":"minimum value","11":"minimum value","12":"minimum value","13":"minimum value"},"particulate size approaching 100% retention":{"0":">5µm","1":">5µm","2":">5µm","3":">5µm","4":">5µm","5":">2µm","6":">2µm","7":">1µm","8":">1µm","9":">1µm","10":">0.5µm","11":">0.5µm","12":">0.3µm","13":">0.3µm"},"test standard":{"0":"bs en779","1":"bs en779","2":"bs en779","3":"bs en779","4":"bs en779","5":"bs en779","6":"bs en779","7":"bs en779","8":"bs en779","9":"bs en1822","10":"bs en1822","11":"bs en1822","12":"bs en1822","13":"bs en1822"}}