Reverse Osmosis is usually referred to as RO. It is one of the processes that makes it possible to remove salt from seawater and make this water drinkable i.e. desalination. RO is also the basis for recycling water and treating wastewater. The RO process itself is where you "deionize" or "demineralize". This basically means you push the water through a semi-permeable RO membrane. The result of this is a very powerful purification and filtration method. One that can remove EVERYTHING from your water in a way that not many other methods can. This is why RO is extremely popular for those seeking both power and purity from their water filter. But there are many downsides you should know about. The articles below will tell you everything you need to know. Especially as there are some dangers that not many people talk about, particularly the people selling RO filters. The articles and posts below will also discuss the best RO filters, how reverse osmosis works and how to get the best RO whole house filter.