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What are the serious companies for polarity inverters for the treatment of hair lifts in the walls of an old house in the Drôme?

Polarity inversion systems to fight against humidity exist in the professional world and have proved their worth, especially for fight against hair rising in railway tunnels. It is difficult to tell you which brands of equipment are more serious than others. Find out about their clientele and choose those who have dealt with professional projects. And beware of those that ensure a 100% result, any treatment against moisture having its share of hazards...

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