To ensure your ÖKO Bottle continues to deliver pure, great-tasting water, it's important to follow the recommended replacement schedule for your filter. Whether you're using the Level-2 Filter for daily hydration or the Level-3 Filter for rugged outdoor use, this guide will help you know exactly when and why to replace your filter.
ÖKO Level-2 Filter
The ÖKO Level-2 Filter is engineered with NASA-developed electro-adsorbent nano-filtration technology to remove viruses, bacteria, heavy metals, chlorine, and other chemical contaminants. Designed for daily use, it offers reliable protection in cities, offices, schools, and during travel.
Replacement Timeline:
- Replace every 3–4 months under average use
- Or after 380 liters (100 gallons) of filtered water
Signs It's Time to Replace:
- Noticeably slower water flow
- You’ve used the filter in high-sediment environments (e.g., murky river water)
- Filter has reached its 3–4 month usage window, even if flow seems normal
ÖKO Level-3 Filter
The ÖKO Level-3 Filter features a 0.1-micron hollow fiber membrane, providing high-level protection by removing up to 99.999% of bacteria and 99.9% of protozoa and parasites. Ideal for hiking, survival situations, global travel, and emergency kits.
Replacement Timeline:
- Replace after 1,000 liters of use
- With proper rinsing and care, it can last up to 3,000 liters
Signs It's Time to Replace:
- Water flow becomes significantly reduced
- The filter has been stored wet or not rinsed after use
- You’ve reached the maximum filtration limit