That's OK. The maintenance and visual aspect of plants can be good for mental health.

If you want cleaner air you have to move air through a filter at high speed. I have some consumer grade purifiers but the Corsi–Rosenthal Box [1] is easily the most effective of what I have. Both in feeling and measured. And it costs less than $100.

[1] https://en.wikipedia.org/wiki/Corsi%E2%80%93Rosenthal_Box