How to test the ionizing air fan is good or bad?
You can use the ion balance of the measuring ion fan and the static dissipating time. If it is a commonly used ion fan, it is equipped with instruments for measuring this kind. The common one is the German kleinwachter EFM-022CPS ion fan detector, CPM. - 374 charging board monitor, as well as the US Monroe268A tablet static tester, etc., it is recommended to buy accurate instrumentation, those cheap instruments do not make sense!
