I use my OKO water bottle every day to replace my old system (charcoal stick), which wasn't effective enough. With the water bottle, the water tastes great, and I don't have to worry about poisoning myself with heavy metals, drug residues, or anything else. I am very happy with this 1L purchase and would love to have a 650mL one for occasions when I need to travel "lighter." Thank you!

I bought the 1-liter Eco filter bottle and I'm really happy with it. It's easy to use, lightweight, and fits comfortably in my hand. The filtration system is effective: the water tastes better and I drink it with confidence, whether at home, at work, or on the go.
The 1-liter capacity is perfect for the day, and the cap closes tightly, so there are no leaks in my bag. It's easy to clean and the filter can be changed quickly.
It's a purchase I don't regret: practical, economical, and eco-friendly.

A little confused by the fact that you drink without sucking, I had trouble getting used to it, but the water tastes really good and I have a lot of confidence in this filtration system, so when I don't have it or forget it, I miss it a little more, along with the app that reminds you to wash the mouthpiece and tells you when to change the filter. I have a 650 ml bottle that fits perfectly in my bag, so I can take it everywhere.

After seeing it on social media, the website confirmed my decision to purchase the tap filter, following minor issues with the water supply in my city.

The set takes up a little space but is still easy to handle.

After two years of traveling by van from France to Nepal, we didn't hesitate to invest in two ÖKO water bottles because, even though we had a water filtration system in our van, we often found ourselves camping or hiking for several days at a time, and we really missed having the ÖKO water bottle.
Being self-sufficient on the other side of the world, even with just our backpacks, without having to buy bottled water: it's great for us and for the planet! With our two water bottles and our supply of filters, we're ready to set off on another trip around the world!

As a former soldier, I bought the filter that can be attached to the tap and I highly recommend it. The difference in the water is incredibly noticeable. We went abroad for several months and took it with us. It is very easy to remove and reattach. No need to worry about luggage weight either, as it's super light. We no longer have to worry about carrying bottled water around with us. It's truly revolutionary.

I bought three filters for my filtration system, which will last me a year, and buying them in bulk gave me a discount. Every time I need something, there's a discount. It's great, thank you OKO, I love it.

The OKO filter bottle is our inseparable travel companion: at the beach, in the mountains, on a plane, on a motorcycle, or at work, it is always with us.
We no longer need to buy plastic bottles or look for places to recycle them.
Its 378-liter filter is practically inexhaustible, and we no longer have to worry about the quality of tap water: it eliminates bacteria and contaminants.
We even use it at home, instead of heavy packs of 1.5-liter bottles.
In short, we can't do without the OKO filter bottle!
Thank you for this fantastic invention!

First, during the COVID period, my children and I ordered the water bottles and were completely satisfied. Then the tap filter arrived, and voilà, three orders—an excellent Christmas gift!

No disappointment here—the device meets our expectations in terms of taste. We also noticed that there was no limescale at the bottom of our pots after boiling water. And how convenient—it's a change from heavy jugs that need to be filled and kept in the refrigerator. As for its effectiveness against numerous pollutants, we trust the studies carried out by independent laboratories. For now, TAP is TOP 🙂

I use my water bottle every day, I use tap water, I no longer buy mineral water, I changed the straw, it's perfect 😀👍❤️

Hi everyone! Honestly, I thought the ÖKO water bottle was just another scam, but my curiosity got the better of me and I decided to order one.
I was immediately surprised! Even tap water filtered by the bottle tasted better!
What's more, I do a lot of trekking and the filter bottle has become absolutely indispensable!

Thank you, ÖKO, for this product that has improved my everyday comfort!

I am so happy to drink truly filtered water every day. It is with me all the time now! No more microplastics and other components that are bad for your health! I recommend it to everyone.

Overall, I give these ÖKO water bottles a very positive rating. They offer a good balance between practicality, filtration performance, environmental friendliness, and versatility. They aren't perfect—the flow rate can require some effort, the filter has its limitations depending on the water source, and the cost is high—but for someone who wants a reliable filter bottle for filtering tap water or water in nature, it's an excellent choice.

If I had to give a rating, I would say:
5 Stars

We use it all the time at home and outside. I recommend it to everyone I know.