A. These great shower filters don't necessarily eliminate the chemicals mentioned. They usually will lower the amount of chemicals. It really depends on your water conditions. Water quality is very complicated/complex. We wish to be totally honest and not "sell" something that we don't believe in. We have had many "thanks" and compliments and repeat business with these Sprite shower filters but we do want you to know that in some water conditions they won't do that much nor will they last long. Some water qualities are extra-ordinary. The above shower water filters reduce many chemicals, for most situations, but they are not a be-all and fix-all for all water qualities. In some cases you might also need a whole house sand filter, a water softener or maybe a whole house water filter. In some cases, where you have very poor quality water, it might be best to hire a local water expert to give you advice on how to deal with your bad water.