That’s just legalese for the following instructions:
  1. Don’t stick the tablet in your eye.
  2. Try not to handle the tablet for long periods of time.
  3. Don’t swallow the tablet. Water should be purified while in a separate container… not your stomach.
  4. Don’t feed tablet to your fish.
  5. Don’t feed tablet to anything else, either.


If used correctly, it’s already been proven that Katadyn Micropur MP1 tablets are perfectly safe. After all, the product page states “same proven technology that is used in municipal water supplies”, and you’re not dead yet.
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“Hiking is just walking where it’s okay to pee. Sometimes old people hike by mistake.” — Demitri Martin