ISO 8573-1 Class 0.
The oil-free air standard.
มาตรฐานอากาศปลอดน้ำมัน — Class 0 คืออะไร และทำไมวิศวกรต้องรู้
ISO 8573-1 defines seven air purity classes. Class 0 is the highest — zero detectable oil contamination at any concentration. AERZEN rental units are TÜV-certified to Class 0 across the entire operating range.
“AERZEN Rental Solutions is always close at hand.”

What Class 0 means for your plant.
ISO 8573-1 Class 0 ไม่ใช่แค่ marketing claim — เป็นมาตรฐานที่ตรวจสอบได้จาก third-party lab ทุกครั้ง
Zero detectable oil
Class 0 specifies that oil content must be lower than any measurable concentration at any operating condition. More stringent than Class 1 (max 0.01 mg/m³).
No oil in compression stage
AERZEN rotary lobe, screw, and turbo technologies use no oil in the compression chamber. Air never contacts lubricant — Class 0 is achieved by design, not filtration.
TÜV verified — all conditions
Class 0 certification from TÜV covers the full operating range: all load points, all ambient temperatures, all pressures within spec. Not tested at one condition only.
Required by pharma, food, electronics
ISO 22000, GMP, and semiconductor cleanroom standards require Class 0 air in product-contact zones.
Eliminates downstream filter maintenance
Oil-injected compressors with coalescing filters cannot guarantee Class 0 when filters age or fail. Oil-free design removes this single point of failure entirely.
AERZEN oil-free since 1864
Aerzener Maschinenfabrik GmbH has built oil-free positive displacement machines for over 160 years. Class 0 is the original design philosophy.
Industries that cannot accept Class 1.

Pharmaceutical
GMP regulations require Class 0 in API and product-contact compressed air systems.

Food & Beverage
ISO 22000 and HACCP standards mandate zero oil contamination in food contact air.

Electronics
Semiconductor fabrication cleanrooms require Class 0 to prevent yield-killing contamination.
ISO 8573-1 Class 0.
Available for rental now.
“Rent a solution. Expect performance.”
“AERZEN Rental Solutions is always close at hand.”
Pricing depends on machine size and contract length · No commitment until site assessment is complete