Sự khác nhau giữa máy lọc RO và ion kiềm

In the context of increasingly serious water pollution, choosing the right water filtration system has become a top concern for every family. HAKAWA, with many years of experience in the field of water filtration and health care equipment, understands the hesitation of consumers when faced with two popular choices: RO water purifier and alkaline ion water purifier. The difference between RO and alkaline ion water purifiers lies not only in technology but also in the purpose of use, health benefits and operating costs. Understanding these differences will help you make informed decisions for your family's health.

Basic Operating Principle

RO (Reverse Osmosis) filter works based on the principle of reverse osmosis, using ultra-fine RO membrane with pore size of 0.0001 micron to remove almost all impurities, bacteria, viruses and dissolved substances in water. This process requires high pressure to force water through the filter membrane, creating pure water with high cleanliness but also removing beneficial minerals.

In contrast, alkaline ionized water purifiers use electrolysis technology to separate water into two streams: alkaline ionized water and acidic water. The Platinum-coated Titanium electrode system generates a direct current, separating the ions in the water into H+ and OH-. This water electrolysis process not only purifies but also creates alkaline water with a pH of 8.5 to 9.5, rich in dissolved hydrogen and easily absorbed ionized minerals.

See details:The difference between RO and alkaline ionizers

Filtration Capacity and Output Water Quality

In terms of filtration, RO machines have a superior advantage in removing impurities. RO membranes can remove 95-99% of contaminants including heavy metals, chemicals, bacteria, viruses and even small molecules like sodium chloride. However, this process also completely removes essential minerals like Calcium, Magnesium, Potassium, creating biologically "dead" water.

Alkaline water filters take a completely different approach. Instead of removing everything, the pre-filter system only removes chlorine, sediment, and some impurities, then the electrolysis process creates alkaline ionized water rich in minerals. The output water has a negative ORP index of -200 to -400mV, indicating strong antioxidant capacity. At the same time, the ionized minerals are easier for the body to absorb.

Health Benefits and Applications

RO water with high purity is suitable for areas with heavily polluted water sources or for special purposes such as preparing medicine or cooking for children. However, long-term drinking of RO water can lead to mineral deficiency, especially in children and the elderly. Many nutritionists recommend supplementing minerals from other sources when using RO water regularly.

Alkaline ionized water offers a wide range of health benefits. Its ability to balance the body’s pH helps neutralize excess acid, improve fatigue, and increase energy. Hydrogen-rich water has natural antioxidant properties, helping to fight aging and protect cells. Studies have also shown that alkaline ionized water can help improve digestion, boost the immune system, and support metabolism.

Investment and Operating Costs

In terms of initial cost, RO purifiers are usually cheaper, ranging from 3-8 million VND depending on capacity and brand. However, operating costs are quite high due to the need to replace the RO membrane periodically every 6-12 months at a cost of 500,000 to 1,500,000 VND each time. In particular, the waste water ratio of RO machines is quite high, usually 1:3 or 1:4, meaning that to have 1 liter of clean water, 3-4 liters of water must be discharged.

Alkaline ionizers have higher investment costs, from 15-50 million VND depending on the technology and brand. However, operating costs are significantly lower. The electrode plate has a lifespan of 10-15 years, only needing to replace the preliminary filter every 6-12 months at a cost of about 200,000-500,000 VND. More importantly, alkaline ionizers do not produce wastewater, significantly saving monthly water costs.

Suitable For Users

RO purifiers are suitable for families living in areas with heavily polluted water sources, containing many heavy metals or toxic chemicals. This is also a good choice for those who need pure water for medical purposes or have a limited budget. However, it is necessary to note that mineral supplements from food or tablets should be taken.

Alkaline water filters are suitable for families who care about their overall health, especially those with digestive problems, oxidative stress or want to fight aging naturally. They are also ideal for athletes, heavy laborers or those who want to improve their quality of life through drinking water.

See more: tác dụng và lợi ích của máy lọc nước ion kiềm

Future Development Trends

RO technology is evolving towards reducing the waste water ratio and integrating the mineral addition feature. Some new products can achieve a 1:1 ratio and automatically add essential minerals after the filtration process.

Alkaline ionizers are moving towards integrating AI to automatically adjust pH according to usage needs, combined with mobile applications to monitor water quality and user health. Electrode technology is also improved to increase efficiency and longevity.

The difference between RO and alkaline ionizers is evident in the design philosophy: one focuses on completely removing impurities, the other aims to create water with high biological value. Which choice is suitable depends on the water source conditions, health needs and financial capacity of each family. HAKAWA is committed to accompanying customers in finding the optimal water filtration solution, bringing peace of mind and sustainable health to every Vietnamese family.