Evaluating a commercial in-duct bipolar ionization device for pollutant removal (sciencedirect.com)

I'm not very good at making long titles fit the 80 character limit for HN. If you can think of a better title please email HN to get them to change it. The title of the paper is "Evaluating a commercially available in-duct bipolar ionization device for pollutant removal and potential byproduct formation".

These devices were sold to many schools. They don't appear to be very good.