The Turboshower utilizes a patented KDF filter that, unlike carbon filters, is not adversely affected by hot water; in fact, the hotter the water, the more effective this filter is. It does a remarkable job of removing chlorine and other VOC's from the water. (Note: During the average shower, we inhale and absorb through our skin the same amount of chlorine as if we had drunk eight 8-oz glasses, or one-half gallon, of chlorinated water.) This is an excellent product and you will notice the difference on your skin and your hair the first time you use it.