Premium · Portable water filter

MSR Guardian Purifier

≈ €370–480

Our addition: not on the official lists

Buy at Amazon

Pump purifier that removes viruses as well as bacteria and protozoa, and cleans itself with every stroke.

Key specs

Pump purifier: viruses, bacteria, protozoa; self-cleans every stroke.

Why we picked it

Removes viruses, which filters don't.

Trade-offs

Heavy and expensive.

Brand

USA (MSR, 1969)

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.