3 screen colors indicate the water's alkalinity and acidity - blue for alkaline, green for purified, and red for acid. ♒【7 Nutritious Water Options】 Our multifunctional water ionizer machine provides 7 nutritious water options: 4 ionized alkaline water (pH 7.5-10.5), 1 non-ionized purified water (pH 7.0), and 2 ionized acidic water (pH 3.5-5.5/5.0-6.5).
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