Originally Posted by Oklahoma Wolf
Actually, a voltage selection switch can mean either no PFC or passive PFC.
In my experience, you only see fixed voltage passive or non PFC units in rare circumstances because manufacturers know that a design without the switched voltage doubler circuit can only be sold in countries that use that one line voltage. Usually, they throw in the circuit because then the unit can be sold worldwide without doing a lot to alter the design.
Indeed, flawed logic on my part, because it was experience based, I've never see a unit with an input switch that doesn't have PPFC (except for that remarkable KissQuiet unit with fake PFC that got debated @ JG as well) but that's probably because I'm located in EU.
Still, assuming the presence of PPFC (when a voltage input switch is present) equates to giving them the benefit of the doubt... it's still bottom of the barrel material though.