Natural Sunlight is a perfect sterilizer and certain wavelengths of the Ultra-violett light spectrum actually destroy or disable most micro-organisms, which can be found in water. Nowadays most bottled water companies use this additionally man-made duplication of natural sunrays to ensure proper sterilization of their products. It is a most natural way and does not leave any residual effect in the water, it just acts as a natural sterilizer. Waternaut can provide you with a UV filter, to sterilize your home water supplies..

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