Activated carbon purifies are installed prior to the expulsion of air outside. They comprise a dry filtering part, an activated carbon filtering section (the greater the quantity, the better the solvent absorption), and a ventilating unit to expel the air. The purifiers installed are of appropriate, balanced capacity for the plant, and guarantee absorption of volatile organic substances, elimination of welding fumes, and environmental reclamation, in accordance with European legislation (Italian presidential decrees 203 and 303).

Filter New Service purifiers are the only Fiat certified purifiers (publication on 'Means of work for car repair workshops'). They are modular, and their activated carbons can always be regenerated.