The medical industry has extremely strict requirements on the quality of compressed air, and the selection of air compressors must meet medical safety standards and special application requirements. The selection of medical air compressors must meet the core certification standard ISO 8573-1 Class 0 (oil-free certification), with an oil content of ≤0.001mg/m³ (10 times higher than the industrial standard). Oil-free scroll machines/oil-free screw machines are the best choice.