Channel Islands XDC-2 and PS Audio PPP

I know that the XDC-2 is one of the few units currently available aimed specifically at eliminating DC on the AC line.

My question is this: if the PPP takes mains AC current, converts it to DC and then back to AC, does it also, in the process, eliminate DC? In other words, does it--albeit at a much higher cost--also do what PS's earlier "hum busters" (humbusters) were designed to do?