How many years can Purigen last?

[LabTest57]

I've regenerated it more than 10 times (specifically, the 100ml pouches). I was wondering if it becomes less effective at scavenging for organic particles after every regeneration.

Also, I don't go through the recommended method for regeneration, however, my method still results in no chlorine/chloramine residue (on/in the purigen) from drop tests,etc.

I use 10.5% sodium hypochlorite (liquid) w/ no water, just soak for 30 minutes and rinse with acidic water. I use ascorbic acid or vitamin C at a concentration level over 1000 ppm to neutralize chlorine/chloramine. After, I soak in Prime and buffered water for less than a day.

It works like a charm, and it's fast and simple (for me).