Lifesystems
Lifesystems Water Filter Purifier Bottle (1 L)
- Protection: 6/10 What it removes from water, and how well that is proved.
- Flow rate: 3/10 How fast clean water comes through when it is new. Real flow drops as it clogs: see Ease of use.
- Weight: 5/10 How much it adds to your pack.
- Ease of use: 7/10 Filling, squeezing or pumping effort, how fast it clogs in peaty or silty water, and how easy it is to clean.
Walkers who want filtering as they drink, from a 1 L bottle
- Type
- Bottle
- Removes viruses
- Yes
- Flow
- Not published
- Weight
- 255 g
- Rated life
- 600 L
Where to buy
Woodland Ways £42.49 In stock. The shop doesn't state its delivery cost.
View at shop: Woodland WaysLifesystems £59.99 In stock. Free delivery. 21-day dispatch on pre-orders. Standard delivery £3.95, free over £10.
View at shop: LifesystemsEllis Brigham £60 In stock. Delivery cost not stated by the shop.
View at shop: Ellis BrighamTrekitt £42.49 Out of stock. £3.99 delivery under £65.
View at shop: TrekittPrices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More
Our ratings (out of 10)
1 to 10, compared with the whole market. Each says what it's based on. How we score
Protection
From maker's figures 6/10What it removes from water, and how well that is proved. 6: A bit better than average.
Electro-adsorptive cartridge with no pore size given. Lifesystems claims 99.99% of viruses, 99.9999% of bacteria and 99.9% of protozoa, and says an ISO 17025:2017 accredited lab tested it. That names the lab's accreditation, not a microbial test standard, and the report is not published. NSF 42 and NSF 53 cover the membrane's taste and health-effect claims, not microbes. Bacteria, protozoa and viruses claimed without a named standard or a published test, so 3.
Flow rate
Estimate from maker's specs: filter type (no flow rate published) 3/10How fast clean water comes through when it is new. Real flow drops as it clogs: see Ease of use. 3: Below average. Fine for some trips, not others.
Estimate from maker's specs
Weight
From maker's figures 5/10How much it adds to your pack. 5: Does the job. Average for wild-camping gear.
255 g for the bottle with its filter and lid (Lifesystems). Ultralight Outdoor Gear lists 260 g, and Outdoors Magic quotes 255 g in its table and 225 g in the tester's words. In the 150–299 g band either way, so 3. The weight includes a 1 L bottle.
Ease of use
Estimate from maker's specs: filter type 7/10Filling, squeezing or pumping effort, how fast it clogs in peaty or silty water, and how easy it is to clean. 7: Better than most.
Estimate from maker's specs
In short
Good for
- Walkers who want filtering as they drink, from a 1 L bottle
- Short trips where the 600 L cartridge life is plenty
- People who want a virus claim in a bottle, for travel as well as UK hills
Strengths
- Claims removal of viruses, bacteria and protozoa in one 1 L bottle
- 255 g with the filter fitted
- Cartridge rated to 600 L, with a ring to mark the change date
- Wide neck makes filling and cleaning easy (Outdoors Magic)
Weaknesses
- No microbial test standard named and no lab report published, so the virus claim cannot be checked
- No published flow rate; Outdoors Magic found it slower than other filters
- Cannot be used to decant filtered water into a pot or other bottle (Outdoors Magic)
- Not safe after freezing: Lifesystems says not to let the cartridge freeze
- Heavy next to straws and squeeze filters
- Tannins from peaty water can shorten the filter's life (Lifesystems)
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.
ShowHide sources (3)
- Lifesystems: Water Filter Purifier Bottle, product page and specs
- Lifesystems: Filter + Purifier Water Bottle quick start guide (testing standards, freezing warning)
- Outdoors Magic (Will Renwick and team): Best Water Filters for Hiking and Camping, entry for the Lifesystems bottle (tester Jazz, multi-day hikes in Northern Ireland)