The laboratory water purification system is a water treatment device that removes all solid impurities, salt ions, bacteria, viruses, etc. in water through filtration, reverse osmosis, electrodialyzer, ion exchanger, ultraviolet sterilization, etc. Common impurities in natural water include soluble inorganic matter, organic matter, particulate matter, microorganisms, soluble gases, etc. Generally, the water purification process can be roughly divided into 4 major steps, pretreatment (primary purification), reverse osmosis (to produce pure water), ion exchange (to produce 18.2MΩ.cm ultrapure water) and terminal treatment (to produce ultrapure water according to special requirements).

Its working principle is to exert a certain pressure on the water, so that water molecules and ionic mineral elements pass through the reverse osmosis membrane, while most of the inorganic salts (including heavy metals), organic matter, bacteria, and viruses dissolved in the water cannot penetrate. Through the reverse osmosis membrane, so that the permeated pure water and the impermeable concentrated water are strictly separated