In this form = offered as a tablet, this is the most straightforward and easiest means metered for water disinfection, which I've tried so far. Based on the results I stayed spontaneously in this means, even if the water is reminiscent in any single sip of fresh spring water but rather a pool sample.
With a package, which is now probably accommodate anywhere to 100 x can sterilize 1 liter of water problems, you have at least 2 hours to soak the stuff. I for one have these tablets when traveling (not only) in non-European countries always there, and they have kept me many times before bad (re) n.
Can this remedies recommend - incidentally, it currently has the PZN 04236277)
NB: you have the opportunity, even one or two small vials to accommodate the luggage, it is recommended that the chlorine by means of Micropur Antichlorine in sodium chloride, that convert normal table salt and thus make the water as far as tasteless; Works unexpectedly very good!
