Alkaline Ionized Water Filtration Technology
Alkaline ionized (alkaline) water filtration technology is an advanced technology used only in alkaline water ionizers. It gives water alkaline and acidic properties for health and to meet a wide range of needs. In particular, it produces alkaline ionized water rich in beneficial minerals, something ordinary water purifiers can’t do.
What You’ll Learn in This Article
How an Alkaline Water Ionizer Works
Alkaline water ionizers work on two principles
Tap water is first filtered through a Super High Grade cartridge that removes up to 17 types of chemicals, then goes through electrolysis to produce alkaline ions and acidic ions.
The ELECTROLYSIS process involves the following steps:

- Step 1: Electrolysis – The electrode chamber is made of platinum-coated titanium. When direct current flows through it, the water undergoes electrolysis, and hydroxide ions (OH⁻) and mineral ions gather at the negative electrode.
- Step 2: Producing alkaline ionized water – Hydroxide ions (OH⁻) make the water alkaline (pH > 7). This alkaline ionized water, along with the acidic water produced at the positive electrode, is delivered to the faucet according to the user’s selection.
Filter Structure and Mechanism
The Mitsubishi Cleansui Alkaline EU301 uses a high-grade, 4-stage Super High Grade cartridge with a Japanese hollow fiber membrane, renowned for removing impurities while retaining beneficial minerals. The 4 stages are:
- Filter Stage 1: (Non-woven Fabric Layer) Removes large, coarse impurities
- Filter Stage 2: (Ion Exchange Fabric Layer) Removes heavy metals such as soluble lead
- Filter Stage 3: (Activated Carbon Layer) Eliminates odors and removes residual chlorine, toxins, and chemicals such as carcinogens, mold, and pesticide residues
- Filter Stage 4: (Hollow-Fiber Membrane Layer) An advanced filtration technology pioneered by Mitsubishi Cleansui that filters out bacteria, microorganisms, algae, turbidity, and more, while retaining only the natural minerals the body needs (down to 0.01 µm)
Features of the EU301 Alkaline Water Ionizer
The EU301 alkaline water ionizer from Mitsubishi Cleansui stands out for its 6 different water modes, including 4 alkaline ionized water modes and 1 acidic ionized water mode, covering every everyday need.
The alkaline ionized water it produces is not only alkaline in pH but also rich in beneficial natural minerals such as calcium, magnesium, sodium, and potassium, which help strengthen bones and joints, boost immunity, maintain nerve function, and regulate the body’s water balance.
Alkaline Water Ionizers vs. Conventional Water Purifiers
Comparing alkaline ionization technology with an ordinary water purifier, the differences are clear, not only in the technology itself but also in the quality of the water it delivers.
About the Technology
- Alkaline ionized water filtration technology: Creates many water modes across a range of pH levels, meeting the needs of a wide variety of users
- Conventional water filtration technology: Produces only one type of water, with no pH adjustment and very limited uses
Output Water Quality
- Alkaline ionized water filtration technology: Alkaline ionization produces several types of water for a wide range of uses, such as drinking, caring for flowers, beauty, food hygiene, and food preparation. Alkaline ionized water is mildly alkaline and supports overall health; in particular, it helps boost resistance, improve metabolism, support the digestive system, and protect the stomach.
- Conventional water purifier technology: Offers only one water mode, used mainly for drinking. Although the water is clean, it lacks the added benefits of pH adjustment or health improvement that an alkaline water ionizer provides.
Who Should Use Alkaline Ionization Technology?
Alkaline ionization technology is the perfect choice for a wide range of uses, helping to balance and reduce acidity for better health with water rich in alkalinity and the minerals the body needs.
- Families with elderly members: The Mitsubishi Cleansui EU301 alkaline water ionizer provides safe water rich in natural minerals for good health, making it a great choice for anyone who wants to supplement their minerals and stay healthy every day.
- Health-conscious people: An alkaline water ionizer is a smart choice for anyone who wants all-around health care through clean, mineral-rich water, plus a variety of modes for cooking.
- Busy people with unbalanced eating habits: For those with hectic schedules, alkaline ionized water effectively supports metabolism and helps improve health.
- People who exercise regularly: After a workout, the body needs to replenish minerals quickly. Alkaline water from an alkaline water ionizer supplies essential minerals, supporting recovery and helping maintain energy levels.
Mitsubishi Cleansui EU301 Alkaline Water Ionizer
The Mitsubishi Cleansui EU301 alkaline water ionizer is a signature product of today’s alkaline ionization technology.
Why Choose a Cleansui Alkaline Water Ionizer?
Choosing alkaline ionization technology from Mitsubishi Cleansui is a smart decision, thanks to the product’s standout benefits.
- A prestigious brand from Japan: Mitsubishi Cleansui is a leading water purifier brand with more than 40 years of experience developing and applying advanced filtration technology. Cleansui products have long been favored by consumers for their quality and reliability.
- Safe, convenient, and economical: Cleansui’s alkaline water ionizer technology not only ensures clean water that’s safe for your health but also saves time, since you can easily replace the cartridge yourself. An automatic self-cleaning feature reduces maintenance and helps extend the life of the electrode plates.
- Warranty: The unit is covered by a warranty of up to 2 years, backed by a service center with a team of professional technicians.
Standout Benefits of the Cleansui Alkaline Water Ionizer
The Mitsubishi Cleansui Alkaline EU301 is an alkaline water ionizer imported from Japan, with many standout features that suit the whole family and offer notable health benefits.

- Provides minerals the body needs: It not only produces clean water but also adds calcium, magnesium, sodium, and potassium, minerals essential for development and for protecting overall health.
- Advanced hollow fiber membrane technology: With a hollow fiber membrane researched and developed by Mitsubishi Cleansui, the EU301 removes bacteria, impurities, and ultra-fine particles (down to 0.01 µm) while retaining the natural minerals the body needs.
- Compact and easy to install: The built-in design separates the regular tap-water faucet from the filtered drinking-water faucet for convenient use. It looks neat and well proportioned and saves space, suiting any kitchen.

6 water modes with pH levels for every use: The Mitsubishi Cleansui Alkaline EU301 offers 6 water modes with different pH levels to meet users’ varied needs, making the EU301 an ideal helper for good drinking water and everyday cooking.
- Strong alkaline water (pH: 9.5–10.5): Strong alkaline ionized water helps remove the bitterness and pungent smell of vegetables such as bitter gourd and onions, and helps remove pesticide residues in place of a vegetable wash. However, this type of water should not be used for drinking directly; use it for cooking purposes only.
- Alkaline water level 3 (pH: 9.0–10.0): This water suits people who are used to drinking alkaline water. It also preserves the flavor of tea and coffee and helps soften hard grains quickly, saving cooking time.
- Alkaline water level 2 (pH: 8.5–9.5): Water at this pH is suitable for direct drinking and cooking. This mode also helps produce better wine and creates rich flavors.
- Alkaline water level 1 (pH: 8.0–9.0): The ideal mode for those new to alkaline ionized water. It can be used for drinking and cooking. Cooking rice with this mode makes the grains softer, stickier, and more fragrant.
- Filtered water (neutral pH): Ideal for direct drinking, preparing baby formula, and taking medicine. Neutral-pH filtered water helps the body better absorb nutrients from food and medicine.
- Acidic ionized water (pH = 5.0–6.5): Has a beautifying effect, leaving skin brighter and smoother. This water is also used to soften boiled eggs and noodles before further preparation. However, acidic ionized water should not be used for drinking directly; use it for beauty and cooking purposes only.
Alkaline ionized water filtration technology not only delivers clean, safe water but also helps care for the long-term health of you and your family.