Hydrachem is listed by NSF International, and its Oasis range of Water Purification Tablets are certified to NSF Standard 60. Hydrachem manufactures in the United Kingdom to GMP standards. Tested to NSF Standard 60. The ingredients in our tablets are US Environmental Protection Agency (EPA) approved.

Our standard Oasis Water Purification Tablets provide the WHO recommended 5ppm for emergency water purification. For household situations where a clean source is used, we can provide Oasis Home Water Purification Tablets which provide the recommended 2ppm.