Emergency Water Purification Tablets
Chlorine dioxide tablets are the most reliable chemical treatment for field water. They handle viruses, bacteria, and Giardia, with Cryptosporidium killed at longer contact times. Each bottle stores for years.
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- How many tablets per person per day?
- For 3 liters of drinking water per adult per day, plan on 3 tablets (typical 1-tablet-per-liter dosing). A 30-tab bottle covers one person for ~10 days.
- Do tablets work on cloudy water?
- Pre-filter through a bandana or coffee filter first. Sediment dramatically reduces chemical effectiveness.
- Shelf life of purification tablets?
- 3 to 5 years in unopened foil. Once opened, humidity starts degrading them — use within months.