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Katadyn

Katadyn BeFree AC Filter Water Bottle 0.7L

  • 0.7 liter rigid bottle, hard-sided, not a softflask
  • 2-stage filter: 0.1 micron hollow fiber plus activated carbon
  • 2 liters per minute maximum flow rate
  • 1000 ppm max TDS supported
  • 95 g listed weight
  • No tools or backflushing to clean, shake or swish in water

Updated 20 days ago · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A sensible filter bottle for travelers and commuters who refill from taps and want better tasting water. Pathogen protection is not stated, so do not count on it for untreated sources.

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ASIN: B0G52LQ6V8Category: Canteens & Water Containers

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Overview

A hollow fiber membrane paired with an activated carbon stage does the work inside the Katadyn BeFree AC, a rigid bottle you drink through. Water passes the membrane, which catches sediment, fine particles and microplastics, then carbon cuts chlorine, odor and off tastes before the flip mouthpiece.

Tap water on the move is where this bottle earns its place: hotel sinks, airport fountains and city refill points get a taste and sediment cleanup in a body that drops into cup holders and bike cages. The listing makes no claim about bacteria or viruses, so check Katadyn's guidance before relying on it for untreated stream water.

Who it's for

Frequent flyers and daily commuters who refill wherever they can get the most from it, since the hard shell rides in cup holders, bike cages and carry-on pockets. Hikers who need a stated pathogen rating or a large water supply should look at a bigger filter system.

Pros and cons

Pros
  • Rigid body fits cup holders and bottle cages
  • Carbon stage reduces chlorine and odors
  • Membrane cleans by shaking, no backflushing
  • BPA-free polypropylene build
Cons
  • Bacteria and virus removal not listed
  • Small capacity means frequent refills
  • Hard shell does not collapse when empty
  • Murky water clogs the membrane faster

Performance notes

Flow depends on how clear the hollow fiber membrane stays; silt and sediment slow it, and a shake or swish in clean water restores it. Taste improvement comes from the carbon stage, which works on chlorine and odors from treated tap water. Cloudy sources load the membrane faster, so expect more frequent cleaning there.

Specifications

BrandKatadyn
Dimensions & fit
Item weight0.21 pounds
Item Dimensions L x W x H3.2 × 3.2 × 5.4 inches
Filter pore size0.1 micron
Capacity & performance
Capacity0.2 gallons
Maximum flow rate0.5 gpm
Power & efficiency
Power SourceManual
Construction & materials
Material TypePolypropylene
ColorRed
Warranty & support
Supported Water TDS Level Maximum PPM1000
Other details
Container TypeBottle
Purification MethodActivated Carbon, Hollow Fiber Membrane
Other Special Features of the ProductBPA-Free, Hollow Fiber, Activated Carbon

Frequently asked questions

Will the Katadyn BeFree AC 0.7L fit a car cup holder or bike bottle cage?

Yes. Katadyn says the rigid bottle is designed to fit standard cup holders and bike bottle cages, and it also fits carry-on bags and backpack side pockets. Its listed footprint is 3.2 by 3.2 inches.

How do you clean the BeFree AC filter?

No tools or backflushing are needed. Shake or swish the EZ-Clean membrane in water to restore full flow.

Can I take the Katadyn BeFree AC through airport security?

Katadyn suggests emptying it before security and refilling at a fountain on the other side.

What comes in the box with the BeFree AC bottle?

The drinking bottle, the EZ-Clean membrane, the activated carbon element, a flip mouthpiece and a handle.