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It concerns the gas pollutants restraint filter that come from the burning of coal and it’s materials.

1. The filters have been tested to operate in industry.
2. They are inexpensive and simple in their way of working.
3. Their lifetime depends on the kind of air pollutants and they may last for ever.
4. They are never cleaned as an automatic system of cleaning and discarding of the pollutants into the connected sewage network is operating.
5. Their full operation in pollutants retention reaches its maximum capacity and in most cases at 100% thus it’s incessantly the same, it does not decrease through time.
6. The originality of the patent certification is authorized by annual payment fee. Person authorized for the patent.

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The inventor with the filter at an exhibition