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Oil fume (air pollution by oil particles) if mostly generated by cooling liquids (coolant emissions). These cooling lubricants often contain chemical additives. During the machining operation, e.g. turning, milling, drilling or grinding, the coolant is put under heavy mechanical or thermal load by being centrifuged, sputtered, heated etc.. This process generates airborne oil particles that may be damaging to health. Oil particles may cause health effects such as skin disease, intoxication, allergies or even cancer.
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