Table:
text: Air filter
Filter classes
Filter classes
Usage_ Class_ Performance Performance_test Particulate_size_approaching_100_retention Test_Standard
Semi Hepa H12 99.5% Minimum value >0.5µm BS EN1822
Hepa H13 99.95% Minimum value >0.3µm BS EN1822
Hepa H14 99.995% Minimum value >0.3µm BS EN1822

Question: What performance does a use of hepa and a class of h14 under air filter have?