Cartridges contain filtration and KDF media which remove sediments, chlorine, organic compounds, phenol compounds and benzene as well as up to 85% chlorine pesticides, heavy metals such as arsenic, cadmium, lead, mercury. KDF deposit has bacteriostatic abilities (preventing the growth of bacteria in the filter bed). Chlorine fumes emitted during hot bathing have a negative impact on our body (irritate eyes, respiratory system, eyes and mucous membranes of the nose).