if you are in the rock-and-snow alpine treatment is basically unnecessary anyways unless you have a rainer frozen shit pile right above you. and if you are below treeline, or even in alpine meadows, or subalpine bogs, you can get some pretty high DOC levels. in these cases a straight filter will not give you THM's and a Miox or aquamira will. hmmmm. hmmmm. i just don't see the point of trading lighter weight for elevated but still trace levcels of carcinogens. its like buying ice screws made of radioactive russian missile titanium. they may work great as a headlamp too but WTF