GRAYL GEOPRESS BOTTLE PURIFIER £95
Lots of nasty things can lurk unseen in sketchy water sources: Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery and more. Unlike many filters, the Geopress deals with them all, offering viral as well as bacterial filtration, while also removing pesticides, chemicals, heavy metals and even microplastics. It's a little heavier and bulkier than a standard water bottle, but it's refreshingly quick and easy to use, delivering 700ml of clean water in just 8 seconds.
VERDICT A simple, super-fast water purifier that provides sufficient protection for all adventures at home or abroad. It also needs no pumping, squeezing or backflushing. Just fill, press and pour.
LIFESTRAW PEAK SERIES COLLAPSIBLE SQUEEZE 1L WATER BOTTLE £50
At a kilogram per litre, water is weighty; one…