TTL France SAS , a subsidiary of the Testori SPA group, is a market leader in dust removal and flue gas treatment and a major player in liquid filtration. The supply of bags, filter bags and cloths is complemented by replacement services for these elements, expertise and inspection of filters, supply of spare parts (EV-joint-membrane kit-fluorescent powder), in-situ regeneration with Joc’Air and analysis of used bags.