The super stylish Russell Hobbs Purity Glass Kettle has a built in Brita water filter system that reduces limescale and chlorine and permanently absorbs any copper and lead that colour occur in tap water. Features. Over time, chemicals can sometimes leave residue or a bad taste in your hot drink. Its built in Brita water filtration system removes these impurities. To make sure every litre of water you boil remains pure, there is a handy built in alert to remind you when the cartridge needs to be replaced. The purity glass kettle embodies a timeless simplicity of style, with high quality glass casing so you can watch the water as it boils. As a temperature rises, the water is infused with soft blue light which illuminates at its brightest when boiling point is reached. To keep to your work top clutter free, the base has integrated cord storage so it can be tidies away when it s not in use. The Russell Hobbs Purity Glass kettle incorporates BRITA advances MAXTRA+ advanced filtration technology that goes a long way a make a better tasting hot drink. With its sleek and stylish housing it will also make a style statement in any kitchen. Includes Brita Maxtra filter cartridge. The BRITA MAXTRA+ Filter reduces the build up of limescale in the kettle, as well as reducing chlorine and permanently absorbing copper and lead. Cleaner, Clearer, better tasting tea and coffee. The advanced BRITA Filter technology reduces taste impairing substances, allowing the full flavour and aroma of your hot drinks to shine through.