What is the reverse osmosis system in a water dispenser?

Reverse osmosis system is a water treatment technology that uses semi permeable membrane filters to filter ions, microorganisms, and dissolved substances in water, thereby purifying water quality. Reverse osmosis systems are commonly used in water dispensers to remove impurities, harmful substances, and odors from tap water or other water sources, thereby obtaining pure and healthy drinking water. It forces water through a special semi permeable membrane filter by applying pressure, leaving behind water containing impurities and harmful substances. Only water molecules can pass through this filter to obtain high-purity water.