Filter Caps

Filter Caps transform a simple bottle cap into a filter that purifies and mineralizes water with just a simple action. By connecting two bottles—one with non-drinkable water, the other empty—they ensure all water passing through the cap becomes safe to drink. A vital solution for millions without clean water, it eliminates the need for expensive infrastructure. Made of metals, minerals, and natural substances on the inside, it raises water's pH, adds hydrogen, reduces cloudiness by 70%, and removes 90% of heavy metals. The caps are biodegradable, providing 720 liters of drinkable water.