2026-04-15Views：
The oil content of compressed air depends on industry demand and equipment configuration, usually through ISO 8573-1 grading, the following is the key information:
| Grade | oil content (mg/m & sup3;) | applicable Scenarios |
|---|---|---|
| level 1 | ≤ 0.01 | medical, Pharmaceutical, Semiconductor |
| level 2 | ≤ 0.1 | food, precision instruments |
| level 3 | ≤ 1.0 | spraying, chemical |
| level 4 | ≤ 5.0 | general industry |
| level 5-9 | >> 5.0 | scenarios with low air quality requirements |
Summary: The oil content of compressed air ranges from <0.01 mg/m & sup3;(medical grade) to> 5 mg/m & sup3;(general industrial). Users need to select equipment according to industry standards and maintain it regularly to control oil content and avoid production pollution or equipment failure.
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