Daan Roosgaarde claims that Tesla coils which are buried just under the surface of the earth might be used to create an electrostatic field. This electrostatic field would then attract smog particles, in a somewhat similar manner as that of an electronic vacuum cleaner. Having worked alongside scientists at the University of Delft in The Netherlands, Roosegaarde claims that early experiments were successful, as they managed to clear a one cubic meter area of smog in a five cubic meter room. In fact, Roosegaarde has already reached a deal with the mayor of Beijing so that it can install a system in a city park in order to showcase the technology, and from there, hopefully convince the masses that their city needs something like this. We wonder what are the energy requirements needed to make sure that enough of these are installed to clear an entire city of smog, and whether there are any more cost effective ways.