Stadler Form Viktor, really nice design.
But it's an electrostatic precipitator, I've used one before after the 1997 haze episode. It was a small one something like a Sharp A28E size, but costed my parents some SGD250. Now in 1997 SGD250 is like today's $600-700, so that's really expensive.
The good thing is that it's pretty energy saving, in contrast the HEPA filter presents quite a bit of air resistance (and the resistance increases as it holds more dust). The electrostatic panels also decreases its attraction power as the surface holds more dust, while the HEPA filter would maintain (just that the airflow drops). So in effect, it won't be anywhere near the performance envelope vs a HEPA air purifier, maybe can fight during the first 1 week or so. Or you wash the bugger once every 2 weeks.
But electrostatics don't have filter replacement costs. Just that for our purpose, HEPA filter replacements gotten from taobao (lower grade HEPAs probably, but they'd work, also tested with Laser Particle Counters before) or Amazon are really a few times cheaper than local retail.