My office is located in a building, where there are some other offices. As I enjoy to communicate with other people, I like to explore my neighbourhood. Once I went to the closest office and was very interested in their researches and products. I found out that my neighbours had worked out and produced filters for drinking water to make it cleaner and, I may say, more tasty than the water that was taken from the water-tap. Their filters are remarkable for being made of mineral tuff. From ancient times Armenian craftsmen took advantage of the natural features of tuff to filter water. This process of water filtration repats the filtration process as it is going on in nature. The water of the melting avalanches is flowing from the mountains in numerous small streams and passes through tuff rocks. Then the water goes out to the surface like cold and tasty spring water. The alike process is repeated, when the ceramic tuff or mineral tuff filter is applied.
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