ÖKO Filter Options

ÖKO Filter Options

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:

  1. Filtration Technology: Electro-adsorbent nano-filter (developed by NASA)
  2. Removes:
Viruses (99%)
Bacteria (99%)
Heavy metals, chlorine, pesticides
Chemical residues, odors, and unpleasant tastes
  1. Flow Type: Pressure-based—squeeze and drink, no suction needed
  2. Capacity: Up to 380 liters (100 gallons)
  3. Weight: 34g (1.2 oz)
  4. Compatible With: ÖKO Original 650mL & 1000mL bottles
  5. 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:

  1. Filtration Technology: 0.1-micron hollow fiber membrane
  2. Removes:
Bacteria (99.999%)
Parasites & protozoa (99.9%)
Large viruses (≥ 0.1 microns)
Solid particulates and sediments
  1. Flow Type: Direct suction or squeeze (with adapter)
  2. Capacity:
  1. 1,000 liters standard
  2. Up to 3,000 liters with proper rinsing
  1. Weight: 55g (1.9 oz)
  2. Compatible With: ÖKO 650mL & 1000mL bottles using included adapter
  3. Bonus: Can be used independently as a straw filter in emergency or off-grid situations

How It Connects:

  1. Insert the filter straw into the bottle
  2. Attach the universal adapter to the ÖKO bottle cap
  3. Use in squeeze mode or remove from the bottle for direct drinking from natural sources

Which Filter Should You Choose?

  1. Choose Level-2 if you want all-purpose filtration for daily hydration, gym, travel, or school use.
  2. Choose Level-3 if you need maximum protection in remote areas, international travel, or survival situations.
  3. Use Both: Many users keep a Level-2 for daily use and switch to Level-3 for outdoor trips or emergencies.