CPC C02F 1/283 (2013.01) [C02F 1/003 (2013.01); C02F 2201/006 (2013.01); C02F 2307/04 (2013.01)] | 20 Claims |
1. A disposable water filter cartridge for use in a residential gravity-feed pitcher, said water filter cartridge comprising:
a filter housing defining a chamber having an upper inlet opening and at least one lower outlet opening having a combined total area of about 0.03 to 0.04 square inches; and
a filter media disposed in said chamber, said filter media comprising a granular mixture of at least 6 grams of agglomerated nanoparticles of anatase titania crystal titanium dioxide interspersed with less than or equal to 100 grams of granular activated charcoal;
wherein said at least one lower outlet opening is sized to limit a flow rate through said filter media to at least about 0.3 liters per minute at gravity-feed pressure in the residential gravity-feed water filter pitcher.
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