Lower oil carryover, cleaner downstream air, and more efficient compressor performance across demanding industrial applications. Ashra’s air/oil separators remove oil aerosols from compressed air using coalescing micro-glass fiber layers, effective down to sub-micron levels.



Wrapped AOS

Depth AOS

Pleated AOS

Spin-on AOS
*Note: Compatible across screw-type and sliding vane compressors depending on application/fitment.
Micro-glass fiber coalescing media reduces oil aerosols and vapors, keeping compressed air cleaner and oil loss under control.
Wrapped, depth, pleated, and spin-on options support screw-type and sliding vane compressors so you don’t force-fit generic separators.

Especially in depth and pleated variants, engineered for higher airflow capacity while maintaining low initial restriction.
Reduced oil carryover means cleaner air networks, improved efficiency, and reduced risk of contamination-related equipment issues.
Manufactured with in-house expertise and supported by Ashra’s R&D and 40+ year filtration legacy, built to deliver consistent, repeatable performance.

Air-oil separator filters for Cummins
Air-oil separator elements exploit the phenomenon of coalescence, using micro-glass fibre layers to remove droplets of oil from the compressed air. This filtration process is effective right down to the sub-micron range, to keep oil consumption and oil entrainment into the compressed air networks to a minimum.
ISO/SAE tests for pressure, flow, capacity, and more.
Exclusive media ensures efficiency and life.
Tests performed to meet global standards.
Start to end solutions
Key products enhanced year on year
High capacity, longer service life.
Frequently Asked Questions on Ashra’s AOS
An AOS removes oil aerosols and vapours from compressed air after compression. It helps reduce oil carryover into air networks, improves air cleanliness, and lowers compressor oil consumption.
Ashra AOS elements use coalescence, where oil droplets merge within micro-glass fibre media and separate from the compressed air stream, enabling fine separation down to sub-micron levels.
Ashra AOS filters are suitable for screw-type and sliding vane compressors, with multiple AOS variants designed to match different flow directions and operating requirements.
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