Purify questionable water and sterilise your bottle so you have access to safe drinking water wherever you might be. Crazy Cap bottles are portable water purification bottles with Integrated Deep UV LED sterilisation that doesn’t just filter micro-organisms, it destroys them to provide the purest drinking water. With a capacity of 500ml, the bottle is self-cleaning and is also insulated, keeping drinks cold for 24 hours or hot for 12 hours. The cap can also be used to sterilise any surface: cutlery in a restaurant, a shared workspace, or even the keyboard on a desk computer. The charger is quick and easy to use, and a single charge lasts up to one week. Product Features: Destroys bacteria, viruses, and pathogens (99.999% sterilisation can be achieved in Crazy Mode) using the touch cap sensor A single charge lasts up to one week with the USB rechargeable battery Can sterilise multiple surfaces Unlike water filters that only trap microbes, deep UV kills them completely Zero maintenance with filter-less design Photo-cleaning: prevents the growth of nasty germs inside the bottle by self-cleaning regularly Portless charger ensures a complete 360-degree seal Made from BPA-free and FDA approved food-grade materials Keeps drinks cold for 24 hours or hot for 12 hours with a 304 stainless steel vacuum Use up to 500,000 times sterilising over 235,000 litres of water 10 year warranty NSF/ANSI 55 Certified