Compressed air is widely used in manufacturing and industrial processes. However, air coming from a compressor may contain dust particles, oil aerosols, water, and other contaminants that can affect equipment performance and product quality.
A properly designed compressed air filtration system is essential to maintain clean, dry, and reliable air.
1. Pre Filter – Removing Larger Contaminants
The Pre Filter is generally installed at the beginning of the filtration system. Its main function is to remove larger particles, water droplets, and initial contaminants from compressed air.
It also helps protect downstream filters and equipment from excessive contamination.
2. After Filter – Fine Particle & Oil Aerosol Filtration
The After Filter provides finer filtration after the pre-filter. It is commonly used to reduce smaller particles and oil aerosols that may remain in the compressed air.
Proper filtration helps protect pneumatic equipment and maintain better air quality for production processes.
3. Carbon Filter – Reducing Oil Vapor & Odor
For applications requiring higher air purity, a Activated Carbon Filter can be used to reduce oil vapor and unwanted hydrocarbon odors.
This type of filtration can be particularly relevant for sensitive industrial processes where compressed air quality is critical.
Why Is Proper Filtration Important?
Choosing the right compressed air filter can help:
- Protect pneumatic equipment and production machinery
- Reduce contamination risks
- Improve compressed air quality
- Extend filter and equipment service life
- Support production reliability
- Reduce unexpected maintenance costs
Choose the Right Filtration for Your Application
The required filtration level should be determined based on compressor type, operating conditions, air quality requirements, and the application. For industries with strict air purity requirements, filtration should also be evaluated against the required ISO 8573-1 compressed air quality class.
Air Hira Indonesia provides compressed air solutions including air compressor service, compressed air filtration, air dryer, preventive maintenance, and compressed air quality testing.
Need help determining the right Pre Filter, After Filter, or Carbon Filter for your compressed air system?
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