Does air travelling via a simple fan (no ionizer) through an electrostatic filter (like Filtrete) get ionized?
Just to clarify a prior question, I had; I’ve heard that ionized air can be potentially harmful (i.e. free radicals) so I want to avoid air cleaners that ionize air. The 3M Filtrete electrostatic polyolefin-based filters (very common in furnace filters, and now as part of a standalone air purifier) are pre-charged with a static charge to attract dirt, dust, and particles of inflowing air.
My question is, as non-ionized (regular) air travels through the filter (via a simple fan, there is no ionizer involved) is there any way that it could pick up any of the charge on the electrostatic filter, or that the air can become somewhat ionized in any way or form after it leaves the filter? Now, AFAIK, air doesn’t conduct charges well, so my guess would be no, but I’d like to have an expert opinion.
Wow you must really be short of things to worry about if you are concerned about ionization from those kind of filters.
No is the answer to your question.
You should have a talk with my aunt. She was worried about getting a shock from eating toast after it was made in an electric toaster. You two could share your concerns.
Electrostatic Charging and Electrets for Air Filter Media
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