Absolutely fascinating... :-)
My thoughts on reading their web site:
They claim it is a 'purifier' but do not quote any EPA approval number, which is needed before they can use that word in the USA. They can get away with this because they are located in Canada. If they were located in the USA they would be in court, fast.
The blue light you can see is purely for appearances: it is really a blue LED and has zero purification properties.
Is there a 'powerful ultra-short wave UV light' on the unit? I doubt it very much. The only UV-C LEDs I know off have about 1% of the required output power and cost about $200 each. OK, ballpark figures.
Ooh, big scientific words: Zeta potential. However, this is a scientific term for electrokinetic potential in colloidal systems. I fail to see much connection. Oh well, maybe they are talking about putting colloidal silver into the water.
There is a large silver anode which could be persuaded to put silver ions (or colloidal particles?) into the water. This will have some limited anti-bacterial properties, but I doubt it will do anything for viruses or protozoa.
'Cathode (ground) is 99.99% pure gold-plated copper labyrinth pattern' - but so what, and I can't actually see any gold plating on the copper spiral anyhow.
Of course, I may be completely ignorant of the true value of this device. Anything is possible.