Hello, Dima!
We were talking about electrofilters. Here is a link to a topic with the experience of other people and the simplest electrical circuit. But it will get clogged up very quickly. Kolya Oxenyuk found out this a long time ago. Therefore, I will make a paired electrofilter with self-cleaning on the go. But the circuit will be more complicated, with sensors, a microcontroller and four gas valves on servos.