Katadyn Micropur MP1 Purification Tablets, 20-Pack, Chlorine Dioxide Drinking Water Treatment
For the Weekend Camper who already carries a Sawyer Squeeze, chlorine dioxide tablets are the complementary second layer: the filter removes protozoa and bacteria but not viruses, and chlorine dioxide kills the viruses (and bacteria) chemically. Katadyn Micropur MP1 is the standout because it is EPA-registered and treats a liter per tablet. The catch is time — roughly 30 minutes for bacteria, viruses, and Giardia, and up to 4 hours for Cryptosporidium, which resists chemical disinfection. Cloudy or cold water slows it further. Filter first, then treat, and you cover essentially everything.
Rate this pick
Our own community ratings — from confirmed Amazonia readers, never Amazon. Yours helps the next person decide, and steers what we feature next.
What have experts found about the Katadyn Micropur MP1 Purification Tablets?
Every claim below is tied to a source you can open, quoted verbatim — how we research picks.
-
“Most portable water filters will remove parasites, but not viruses or bacteria.”
Portable filters remove parasites but not viruses or bacteria — the gap chemical treatment fills.
CDC, About Water Treatment Options When Hiking, Camping, or Traveling · 2024 ↗ -
“Chlorine dioxide tablets can kill the parasite Giardia and are somewhat effective at killing Cryptosporidium.”
Chlorine dioxide is only somewhat effective on Cryptosporidium, so CDC recommends filtering first.
CDC, About Water Treatment Options When Hiking, Camping, or Traveling · 2024 ↗ -
“Cloudy water contains substances that neutralize chemical disinfectants and requires higher concentrations of or longer contact times with chemical disinfectants.”
Cloudy or turbid water reduces chemical disinfection effectiveness and needs longer contact times.
CDC Yellow Book, Water Disinfection for Travelers · 2024 ↗
How does the Katadyn Micropur MP1 Purification Tablets compare?
| Katadyn Micropur MP1 (chlorine dioxide) | Sawyer Squeeze filter | Boiling water | |
|---|---|---|---|
| Handles viruses | Yes (kills) | No | Yes (kills) |
| Handles bacteria | Yes (kills) | Yes (filters out) | Yes (kills) |
| Handles Cryptosporidium | Partial — up to 4 hr wait | Yes (filters out) | Yes (kills) |
| Speed to safe water | 30 min–4 hr wait | Instant flow | Boil, then cool |
| Extra hardware needed | None — pocket-size | None — filter only | Stove + fuel |
Buy it if
- Campers already carrying a squeeze filter who want to also neutralize viruses
- International or backcountry travelers where viral contamination is a real risk
- Ultralight hikers who want a pocket-size, no-hardware backup to a filter
- Anyone building a filter-plus-chemical system that covers viruses, bacteria, and parasites
Skip it if
- People who need safe water immediately and can't wait 30 min–4 hours
- Those treating heavily silty or very cold water without pre-filtering (efficacy drops)
- Campers relying on tablets alone for Cryptosporidium instead of filtering first
Is the Katadyn Micropur MP1 Purification Tablets worth it?
The honest complement to a squeeze filter: chlorine dioxide kills the viruses and bacteria the Sawyer can't stop, and Micropur MP1's EPA registration makes it the credible pick. Just respect the clock — up to 4 hours for Cryptosporidium — and treat filter-then-tablet as the real answer, not tablets alone.
Check price on Amazon Live price & reviews on AmazonQuestions, answered
- Tablets vs. a filter vs. boiling — which should I actually use?
- They cover different threats. A squeeze filter like the Sawyer physically removes protozoa and bacteria but not viruses. Chlorine dioxide tablets kill viruses and bacteria chemically and are somewhat effective on Cryptosporidium, but need time. Boiling kills everything but requires a stove, fuel, and cooling time. In the backcountry the strongest combo is filter-then-treat: filter to pull out Cryptosporidium and sediment, then dose with chlorine dioxide to kill viruses. Source CDC — Water Treatment Options ↗CDC Yellow Book — Water Disinfection ↗
- How long do I have to wait — is it instant?
- No. It is not instant. Plan on roughly 30 minutes for bacteria, viruses, and Giardia, and a full 4 hours for Cryptosporidium, which resists chemical disinfection. CDC notes chlorine dioxide tablets are only 'somewhat effective' on Cryptosporidium and advises filtering the water first. Cold or cloudy water slows treatment further. Source CDC — Water Treatment Options ↗CDC Yellow Book — Water Disinfection ↗
- Does chlorine dioxide really kill viruses that my filter misses?
- Yes — that's the point of carrying it. CDC states most portable water filters remove parasites but not viruses or bacteria, while chlorine dioxide kills waterborne pathogens chemically. Viruses are the specific threat a hollow-fiber squeeze filter cannot stop, and chlorine dioxide closes that gap. Source CDC — Water Treatment Options ↗CDC Yellow Book — Water Disinfection ↗
- Can I use these with my Sawyer Squeeze?
- Yes, and that pairing is ideal. Filter first to physically remove Cryptosporidium, bacteria, and sediment, then add a chlorine dioxide tablet to kill any viruses. CDC explicitly advises filtering water before disinfecting it. Together, filter plus tablet covers viruses, bacteria, and parasites. Source CDC — Water Treatment Options ↗CDC Yellow Book — Water Disinfection ↗