Abstract: The installation comprises at least one trickling channel oriented vertically and whose cross-section diminishes from above to below. A transverse wall is arranged below the lower end of this trickling channel. The invention is applicable to the air coming from painting cabins.

Abstract: The present invention concerns a method and an installation for the stoving of articles, inter alia of freshly painted articles. A combustion is used to eliminate a substantial proportion of the polluting and solvent-charged products given off by the articles during stoving and entrained by the ventilating air which is evacuated from the stove. The purified and heated gas supplied by the combustion of the polluting products is reintroduced into the stove, with fresh air. Before combustion, the ventilation air is preheated in a heat exchanger whose source of heat is supplied with heat by said purified and heated gas.