Dear Customer, This product, known as a Shower Filter, is designed to elevate your shower experience to perfection. It reduces heavy metals and chlorine dissolved in water, and prevents their reproduction by eliminating bacteria and fungi. Thanks to the 9-stage filtration system that purifies the shower water, it protects your skin and hair, improves skin health, and makes hair care practical. In addition to all these features, it helps soften the water. We wish you healthy days, Mak Supply International.