All CATTANI compressors are oil-less and equipped with four filters to ensure high-quality, pure dry compressed air. The tanks are coated with alimentary resin to maintain the air's purity. On demand, an antibacterial HEPA H14 filter can be fitted to all models. The compressors have a nominal rating ranging from 0.55 to 9.75 kW, tank capacities of 30, 45, 100, 150, or 300 liters, and an airflow rate between 67.5 N l/min and 1428 N l/min. A noise-reducing plastic cover lowers the sound pressure level by 4 to 9 dB (A), depending on the compressor model. Sound pressure levels are tested according to ISO regulation 3746-1979 (E).