I am also attempting to recharge purigen right now but I am so paranoid that I still smell bleach even though I have rinsed it for days. Are the seachem directions 100% safe?
It should be absolutely no problem, Mitch.
If you've rinsed it for days, and you still smell bleach - then you have a superbly sensitive sense of smell - however, there should be no problem whatsoever.
The Seachem directions are certainly reliable. Don't worry about it.