Early results for the Moonbow AP-4800UIN are out, and it is giving the Philips AC4014 a run for its money. Of course, a smaller filter means more frequent cleaning and filter replacements, but hey, it costs only 45% as much as Philips. Get the whole story here: https://docs.google.com/spreadsheets/d/1FkrLQ_Ma8v3T39tOmTS96ub7AGFbzFDhggde0hEpilo/pubhtml