This video is Part 5 in a series on Backcountry Water Treatment methods.
It is a discussion of electro-chemical adsorption (activated carbon and ion exchange) as a technology for water filtration, with the pros and cons as a treatment method for the reduction of chemicals and viruses in drinking water.

Specific filter options are reviewed, with advice on how to pick the option that might best suit your needs in the field.

View the full series here:
https://www.youtube.com/playlist?list=PLEu_UfyDKJALgbrNEJ5wpuxadz7uM5hEi

Chapter Index
1:45 Adsorption
2:31 Activated Carbon vs. Charcoal
6:13 Chemicals and Heavy Metals
10:00 NSF Standards
14:17 Backpacking Carbon Filters
16:39 Adsorption for Viruses
18:04 Sawyer S3 Select Water Purifier
21:13 Grayl GeoPress
25:20 Aquamira Frontier Max RED line
27:48 Adventure Medical RapidPure
29:59 Water2Go Bottle
32:16 Adsorption vs. Filtration
36:18 First Need XL Elite
40:11 Failure Modes
42:02 Filter Breakthrough
48:46 Service Life Estimation
50:37 Choosing an Adsorption Filter