Whether you're traveling, hiking, or preparing for emergencies, the ÖKO 1000mL Filter Bottle can be customized with two advanced filter types—Level-2 and Level-3—each offering powerful purification technology developed from NASA research.
Here’s a detailed comparison to help you decide which ÖKO filter is right for you.
ÖKO Level-2 Filter
The
ÖKO Level-2 Filter is your all-around, high-performance solution for daily hydration. It uses patented electro-adsorbent nano-filtration technology to remove common contaminants from tap water, river water, or well water.
Key Features:
- Filtration Technology: Electro-adsorbent nano-filter (developed by NASA)
- Removes:
Viruses (99%)
Bacteria (99%)
Heavy metals, chlorine, pesticides
Chemical residues, odors, and unpleasant tastes
- Flow Type: Pressure-based—squeeze and drink, no suction needed
- Capacity: Up to 380 liters (100 gallons)
- Weight: 34g (1.2 oz)
- Compatible With: ÖKO Original 650mL & 1000mL bottles
- Special Feature: Add vitamins or hydration supplements inside the cartridge (not medications)
How It Connects:
The Level-2 filter screws directly into the bottle neck. No tools or adapters required. Simply screw it in, fill the bottle, and squeeze to drink.
ÖKO Level-3 Filter
The
ÖKO Level-3 Filter Kit is a robust purification system built for extreme conditions. It uses a 0.1-micron hollow fiber membrane—the same technology found in advanced survival gear and humanitarian field kits.
Key Features:
- Filtration Technology: 0.1-micron hollow fiber membrane
- Removes:
Bacteria (99.999%)
Parasites & protozoa (99.9%)
Large viruses (≥ 0.1 microns)
Solid particulates and sediments
- Flow Type: Direct suction or squeeze (with adapter)
- Capacity:
- 1,000 liters standard
- Up to 3,000 liters with proper rinsing
- Weight: 55g (1.9 oz)
- Compatible With: ÖKO 650mL & 1000mL bottles using included adapter
- Bonus: Can be used independently as a straw filter in emergency or off-grid situations
How It Connects:
- Insert the filter straw into the bottle
- Attach the universal adapter to the ÖKO bottle cap
- Use in squeeze mode or remove from the bottle for direct drinking from natural sources
Which Filter Should You Choose?
- Choose Level-2 if you want all-purpose filtration for daily hydration, gym, travel, or school use.
- Choose Level-3 if you need maximum protection in remote areas, international travel, or survival situations.
- Use Both: Many users keep a Level-2 for daily use and switch to Level-3 for outdoor trips or emergencies.
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