The mainstream water purifiers on the market now are: RO reverse osmosis water purifiers. RO reverse osmosis water purifiers get pure water, all the filtered substances in the water are filtered out, retaining the water molecules. In areas where water pollution is very serious, it is appropriate to use this water purifier filtered water to drink!
Purification before the water quality if not very turbid, after purification of the naked eye does not feel what changes in water quality. But if the water quality test will have obvious changes. There is also the purified water is generally sweeter, the tongue can taste it.