Spoiler, you breathe highly corrosive and explosive oxygen ALL DAY ;-)
I have a small ionizer here. I cannot really say that it is effective in dust or pollen filtering, but it smells ... fresh ... when I enter the room. Since I sit in a giant pool of electrostatic smog 12 hours every day anyhow ... I'll leave the tinfoil hat in the drawer on this one. What happens to the collected material over time is an issue. On the other hand, if i look what i have to vacuum out of the pc filters...
On the whole, I think it is quite a clever and creative marketing idea, so I give it a 👍for effort and creativity.
I am still waiting for the usb-powered UV-LED-strips to attach to your monitor that give hands and face a tan while you work (i should have patented that before posting)