Q&A for Katadyn 1.0L BeFree AC Filter

Katadyn 1.0L BeFree AC Filter

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NewHiker, member, from CA, United States, asked on August 18, 2025

What contaminants are filtered?

Answered by Igor, member, from CA, United States, on September 13, 2025

Manual coming with the filer is very good, it answers the question: https://www.katadyngroup.com/Downloads/katadyn/manuals/filters/current/Manual%20BeFree%20AC%200.5L-1.0L.pdf.

In short: it is 0.1 micron membrane. Filters protozoa and bacteria, not filter viruses. You have to maintain it properly (read manual!), say if you freeze it wet it would not filter anything. There is also optional activated carbon filter, it is more to improve taste if you have to use nasty water (it is best to avoid nasty water sources altogether).

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Ryan, guest, from CA, United States, asked on May 20, 2025

What's the difference between the black and the blue flask?

Answered by Igor, member, from CA, United States, on August 30, 2025

Black is slightly heavier but more durable.

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Q&A for Katadyn 1.0L BeFree AC Filter — 2 Questions & 2 Answers

What contaminants are filtered?

What's the difference between the black and the blue flask?

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