Domestic RO membranes are vital components in reverse osmosis (RO) water purification systems, ensuring the production of clean and safe drinking water. These membranes effectively filter out impurities such as bacteria, viruses, dissolved salts, and heavy metals, providing high-quality water free from harmful contaminants. By utilizing semi-permeable technology, they allow only pure water molecules to pass through while trapping unwanted substances. A well-maintained RO membrane enhances the performance of the system, ensuring long-term protection against waterborne diseases. Regular replacement of the RO membrane is crucial for maintaining the efficiency and effectiveness of the water purification process.