As we know that only 1% of the world’s water is usable to us. About 97% is salty seawater, and 2% is frozen in glaciers and polar ice caps. Thus that 1% of the world’s water supply is a precious commodity necessary for our survival. That’s why many cities disinfect water with chlorine and it’s really harmful to our body. I think we can solve this problem with the water filter at home and your post gives important information on water filter