How to Test the Performance of an Ionizer air bar
Ionizers have a balance voltage, which can be measured using ionizer testers such as the ME-268A-1, CPM374, EFM022 electrostatic field tester/CPS022 test kit, etc. The balance voltage is a very important performance indicator of an ionizer! It reflects the electrostatic hazard that the ionizer will cause to the object it interacts with during operation, that is, the static voltage generated on the object. If this voltage does not exceed the anti-static capability of ESD-sensitive devices, it is safe. Currently, the balance voltage of ionizers can be as low as a few volts, therefore, it is safe in most cases.
The static electricity on a charged body is insufficient to neutralize the static electricity generated by the ionizer! In other words, the static electricity on the charged object is completely neutralized by the ion fan. Afterward, the positive and negative ions produced by the ion fan should be relatively balanced (we're not considering the balance voltage, as this voltage is safe for the product). Relatively speaking, the positive and negative ions act simultaneously on the object (even with AC and pulsed DC ion fans, the alternating frequency of positive and negative ion generation is 60Hz, which can be considered simultaneous action). At this point, the object will no longer carry static electricity. Therefore, there will be no voltage that could damage sensitive components.
Of course, this is not absolutely 0V; there should be a relatively low voltage on the object, and this value should be less than the balance voltage. Within an acceptable range, it is safe! Therefore, the balance voltage is a very important consideration when selecting an ion fan.