(Tim Makay) Activated charcoal is a substance that is wondrously effective at absorbing even trace amounts of other materials. From the air, from the water, it does not matter.
Activated Charcoal
Prepper Projects: How to Make Activated Charcoal, a Natural Detoxifier
(Zoey Sky) Activated charcoal is a common home remedy with many uses, from detoxifying to boosting kidney health.