
An X user posted a photo of what they claim is a three-month-old RO filter used in Noida. The condition and colour of it have got X users worried.

Leveraging on the bacteria-killing properties of silver and inexpensive copper, a US based researcher has developed a low cost, simple and easily transportable paper-based method to purify drinking water

Planning to buy a water purifier? We found some budget-friendly non electric options for you.