Mid · Portable water filter

Katadyn BeFree 1 L

≈ €40–50

Our addition: not on the official lists

Buy at Amazon

0.1-micron filter on a 1 L soft flask. Fast flow, easy to clean. Removes bacteria and protozoa.

Key specs

0.1 micron, soft flask, fast flow.

Why we picked it

Swiss water-treatment specialist, easy to use.

Trade-offs

Shorter cartridge life than Sawyer.

Brand

Switzerland (Katadyn, 1928)

Where to buy

Amazon

Part of L1: 72-hour emergency kit.

Some links are affiliate links. No sponsored placements. Prices are approximate. Reviewed 19 October 2026.