Oil Free Air Compressors: Best Choice for Pure Air
Oil Free Rotary Screw Compressor
CompAir DH - 100% air purity that meets stringent quality standards
These oil-free air compressor models contain absolutely no oil anywhere in the compressor and have been certified ISO 8573-1 Class Zero (2010) and silicone free.
Water injected, silicone free and oilfree air
Industries such as Electronics, Chemical, Pharmaceutical, Food and Beverage depend upon pure oil-free compressed air as a safe, clean energysource to drive production lines. Sometimes the air comes intodirect contact with the product being created, so it is criticalthat the purity of this air is maintained at all times. You cansee how this is achieved by the DH series in this video - click the design tab, to watch this. The DH Series comprises of the following features:
Single-stage, direct-driven compression element maximises efficiency and minimises maintenance
High quality water injection lubricates, cools and seals the compression process, maximising efficiency
No gearbox means no need for associated oil lubrication
Low bearing loads and low speeds mean sealed-for-life bearings can be used, requiring no oil lubrication
Regulated speed technology available to reduce energy costs
Comprehensive control ensures safe and reliable operation and includes remote communication capability
Fully packaged and silenced enclosure reduces noise and simplifies installation
Oil-free air compressors are widely considered the best choice for applications requiring pure, contamination-free air, especially in industries like pharmaceuticals, food & beverage, electronics, and healthcare.
🔧 Why Choose Oil-Free Air Compressors?
Oil-free compressors eliminate any risk of oil contamination in compressed air. This is critical when air comes into direct contact with products.
Key advantages:
100% air purity (no oil carryover)
Lower risk of product contamination
Reduced maintenance (no oil changes)
Compliance with strict standards like ISO 8573-1 Class 0
🏭 Oil-Free Rotary Screw Compressor (Industrial Standard)
Rotary screw compressors are ideal for continuous-duty industrial operations. They provide:
Steady airflow (no pulsation)
High efficiency for 24/7 use
Lower noise and vibration compared to piston compressors
✔ Key Features
100% oil-free compression (no oil anywhere in the system)
Certified ISO 8573-1 Class Zero air quality
Water-injected technology for cooling, sealing, and lubrication
Single-stage direct drive → higher efficiency, fewer components
Low operating temperatures (~60°C) → improved reliability
Quiet, enclosed design for industrial environments
✔ Performance Range
Power: ~15–37 kW
Pressure: 5–10 bar
Flow: up to ~5.9 m³/min
🏁 Final Takeaway
If your priority is pure, contaminant-free air, oil-free compressors are the right investment.
Choose CompAir DH Series → Best for purity + efficiency + low maintenance
Choose larger models (D or Ultima series) → For heavy industrial demand
Always match compressor size with your air flow and pressure requirements
