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.
Shanghai Granklin Group Water Lubricated Air Compressor/Oil-free Air Compressor Video Analysis Oil-free Screw Air Compressor Working Principle. Let you better understand how our water lubricated air compressor works.
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