Yup guys before 1 year we were using other companies water purifier. But at that time we all family member feel illness in our body. Because it did not work well. After that we bought new water purifier after advice of our family doctor. From than to now we never got any type of illness. Kent RO is based of ultraviolet rays, which is help to kill harmfull bacteria from drinking water. And weare safe after using this. Kent RO is very trusted water purifiers of the india. Average 65% people are using Kent RO. This shows the popularity and trust also the work of it. Kent is good for our helth also. It is very help full