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Ultralight mechanical water filter with a soft yet extremely durable collapsible 1-liter bottle for trekking and travel. The filter has a flow rate of up to 3 l/min. It works on the principle of hollow fibers that trap everything larger than 0,2 microns (eliminates bacteria, parasites, microplastics, sediments).
This could come in handy for you.
The LifeStraw Peak Series Collapsible Squeeze Bottle combines a soft, collapsible 1-liter bottle with a mechanical microfilter with 0,2-micron pores. It removes 99,9% of bacteria (including E. coli and Salmonella), parasites (Giardia, Cryptosporidium), microplastics, sand, sediment, and turbidity. The powerful membrane is designed to minimize clogging and maintain a flow rate of up to 3 liters per minute even with long-term use.
The filter is designed to allow multiple ways to use it – you can drink straight from the mouthpiece, squeeze water into another container, or unscrew the filter and use it separately. Thanks to the thread on both sides, you can also connect it externally (e.g., to a gravity system). The cap has a loop for hanging. The 1-liter bottle is soft, foldable, and extremely resistant to tearing or puncturing.

The stated lifespan of the filter is 2000 liters. Even though that might seem low compared to competing filters, it’s plenty for several years of use in the field. Go ahead and calculate how much water you can filter during one season in the wild.
Protect the filter from freezing – if water froze inside, it could damage its microfibers. Every now and then, backflush the filter with clean water in the opposite direction of filtration.
If you're planning to store the LifeStraw Peak Series filter for more than a month without using it, the manufacturer recommends first flushing the filter according to the instructions, and then filling it with a saline solution (1 teaspoon of salt per 2 cups of water) using a syringe. Pour the rest of the solution into the bottle as well, attach the filter, and close the bottle. Store the whole system in a cool, dry place. Before using it again, be sure to thoroughly flush the filter and the bottle with clean water.

If you are unsure about which size or color to choose, or if you have any other questions, feel free to contact us via email or directly in the online chat. We are here for you.