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What is the L2+ filter?
Originally designed for industrial use, the L2+ filter features a reinforced membrane capable of withstanding very high pressures.
Tighter pores: even finer filtration, effectively removing microorganisms and particles.
Adjusted flow rate: instead of 35 seconds to filter 1 liter of water, allow 45 to 50 seconds—a slight compromise that remains entirely acceptable for field and/or survival use.
Extreme reliability: specially designed for situations where water quality is uncertain.
👉 The L2+ filter is your ideal ally for travel, hiking, survival, or any activity in unfamiliar surroundings.
Are these packs suitable for my destination?
They are recommended (but may not be sufficient - see the dedicated page) for rural areas in Argentina, Bahamas, Bhutan, Bolivia, Botswana, Brazil, Burkina Faso, China, Colombia, Costa Rica, Côte d'Ivoire, Cuba, Djibouti, Dominica, Ecuador, El Salvador, Ethiopia, Gabon, Gambia, Gaza Strip, Guatemala, Honduras, India, Jamaica, Jordan, Kazakhstan, North Korea, Kyrgyzstan, Lesotho, Malawi, Maldives, Mexico, Moldova, Morocco, Namibia, Nepal, Nicaragua, Niger, Pakistan, Panama, Paraguay, Philippines, Russian Federation, Seychelles, Solomon Islands, South Africa, Sri Lanka, Suriname, Syria, Tajikistan, Tunisia, Turkmenistan, Uzbekistan, Vietnam, Zambia, and Zimbabwe.
We recommend them for urban and rural areas in Afghanistan, Algeria, Angola, Anguilla, Antigua and Barbuda, Azerbaijan, Bangladesh, Benin, Burundi, Cambodia, Cameroon, Cape Verde, Chad, Comoros, Republic of the Congo, Democratic Republic of the Congo, Croatia, Dominican Republic, East Timor, Equatorial Guinea, Eritrea, Fiji, French Guiana, Ghana, Guinea, Guinea-Bissau, Haiti, Indonesia, Iraq, Kenya, Kiribati, Lao People's Democratic Republic, Liberia, Madagascar, Mali, Marshall Islands, Mauritania, Mozambique, Myanmar, Nigeria, Oman, Palau, Occupied Palestinian Territory, Papua New Guinea, Peru, Romania, Rwanda, Samoa, Sao Tome and Principe, Senegal, Sierra Leone, Somalia, Sudan, Eswatini (Swaziland), Tanzania, Togo, Uganda, Vanuatu, Venezuela, and Yemen.
In countries not mentioned, the standard L2 filter would be sufficient. See our page dedicated to traveling with ÖKO.
Essential tips for successful filtration when traveling or in survival situations
1
Chemical treatment
When traveling to a region where the water quality is questionable, consider bringing water treatment tablets (such as Micropur).
Then filter this water with your ÖKO water bottle to remove the taste of chlorine and make it more pleasant to drink.
2
Imperative hygiene
Poorly filtered water may not come from the filter... but from your actions:
1- Never immerse the cap or pipette in water.
2-Do not put the pipette in your mouth.
3-Always wash your hands before handling.
3
Protect your filters
Bring one or more replacement filters with you: they weigh only 47 g.
Pre-filter very dirty water with a filter sock or cloth: this protects the 400 pores of your L2 or L2+ filter.
4
Complete with an L3
For expeditions in areas where water is particularly risky or unknown, opt for enhanced safety with the L3 ÖKO filter.
It perfectly complements an L2 or L2+ filter in extreme situations. Weighing only 58 grams, it fits in any bag.
Being able to drink in an emergency is good.
It's better to be able to drink it safely.
Detailed contents of the complete survival kit
1 ÖKO 650 mL water bottle with integrated filter
➡️ Drink directly from the source, filtering out viruses, bacteria, parasites, heavy metals, drug residues, and chemicals.
2 additional replacement filters (2 x 378 L)
➡️ Extended battery life for several weeks/months.
1 L3 filter (1000 L)
➡️ The alternative to the classic water bottle filter. More suitable for extreme situations. Hollow fibers at 0.1 microns.
Total capacity
Up to 2,100 liters of drinking water.
➡️ Enough to meet the needs of one person for nearly 18 months (4 liters/day), or a group for several weeks or even months.