Performance and technical data Minimum operating temperature >0 °C (32 °F) Maximum operating temperature 50 °C (122 °F) Minimum storage temperature -10 °C* (14 °F) Maximum storage temperature 60 °C (140 °F) Initial flow rate 2.5L/min@0.25 Bar(1) Cartridge service rating 4000 litres (1056 US gallons) 6000 litres (1585 US gallons) MWCO 200KDs - on dextranes Bacteria retention >99.999995 % (log 7.5)(2) Virus retention >99.999 % (log5)(3) Chemical reduction Activated carbon reduces chemical residues, inc: pesticides endocrine disrupting compounds medical residues and heavy metals LIFESAVER systems US compliance EPA - US National Primary Drinking Water Regulations under the Safe Drinking Water Act 93-523 LIFESAVER systems UK compliance Water Supply (Water Quality) Regulations 2000 LIFESAVER systems EU compliance European Drinking Water Directive Council Directive 98/83/EC LIFESAVER systems WHO compliance Guidelines for Drinking-water Quality First Addendum 3rd Edition Membrane approvals /compliances CE, EPA, NSF, WHO, WRAS, DVGW, KIWA, KTW, LSHTM Dry weight of Hydrocarry inc cartridge 445grams (15.7oz) Bottle storage capacity 2L (67.5 US oz) 3L (101.4 US oz) Hydrocarry materials lining compliance FDA 175.105, 177.1680 and 177.2600, USPVI, BS 6920, NSF61 and KTW class C Warranty: 2 Year international limited warranty 1. Flow rates and capacity depend on the quality of the feed water. 2. Tested by London School of Hygiene & Tropical Medicine using Escherichia coli NCTC 10418 in accordance with the Protocol for Microbiological Water Purifiers in accordance with US Environmental Protection Agency (EPA) guidelines. 3. Tested by London School of Hygiene & Tropical Medicine using Poliovirus Type 1 (Sabin vaccine strain) in accordance with the Protocol for Microbiological Water Purifiers in accordance with US Environmental Protection Agency (EPA) guidelines. *After first use the product should be protected against freezing.