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- - Anyone know how "green" this is? - -

- - Is there a life-cycle issue here in which nano-titania's production would offset the ecological benefits of its use? - -

The answers are YES, it is considered a very dirty process and YES, at best the life-cycle would be a few months.

As seen with most clothing treated with silver for it's anti-microbial properties, they stop being effective after a few uses.

This sounds like a great science project of no value in practical use.

But it will be appealing to the green crowd who have money to burn on looking eco-aware.