Silica drying module for the elimination of residual humidity from compressed air, to be used combined with an air pre-filtering unit in the painting booth. Equipped with a light that signals the saturation of the silica with the possibility of replacing or regenerating it (4 hours at 120° C.) Ref.60129/11 Silica drying unit, to eliminate residual humidity in compressed air, to be used in combination with an air pre-filtering group in a painting booth. Provided with an indicator to show saturation of the silica which can be replaced or regenerated (4 hours at 135°C). Filter to eliminate dust generated by silica 5µ. Central body: Anodized aluminium Pressure adjuster: Membrane system and automatic decompression Air inlet: F 3/4" Air outlet: Nr. 2 from M 1/4" Filtering power: Air 5µ Working pressure: 12 bar Air consumption: 1200 l/min to 6 bar Weight: 11.5 Kg MPN - 60129/11