Independent laboratory testing results of popular gravity water filters
We've independently tested the most popular water filters for removal of toxic heavy metals (lead, cadmium, mercury, arsenic) and elements with radioactive isotopes (uranium, strontium, cesium)

Testing Methodology:

All tests conducted by Mike Adams, the Health Ranger, via ICP-MS instrumentation with parts per billion sensitivity using methodologies based on EPA 200.8, using nitric acid digestion, sample normalization, 4-point external standards calibration and in-run calibration checks. The Natural News Forensic Food Lab is pending ISO 17025 certification.

Learn more