My husband and I have been using your product for the past five years.  We honestly feel our health has improved and remained stable since adding your water filtration system.  He had a 5-way heart bypass 12 years ago and lung cancer 9 years ago.  I am a 10-year survivor of Stage 4 Breast Cancer.  So you see, it is vitally important that our compromised immune systems receive the best product on the market.  We sincerely feel ZERO Water is that product!  Thank you!