Oil mist filtration: how does coalescence technology work?

In industrial environments, mechanical processes like turning, milling, and grinding frequently generate oil mist: tiny droplets of oil and emulsions dispersed in the air. These affect air quality and pose risks to worker health.

These particles can settle on surfaces and machinery, increasing the risk of accidents and maintenance costs.

An effective and sustainable solution? A coalescence filtration system designed to capture and separate oil mists efficiently, safely and with low energy consumption.

What is coalescence and why is it ideal for oil mists?

Coalescence filtration uses a simple physical principle: when microdroplets of oil suspended in the air pass through specific filter materials, they tend to aggregate into larger droplets. Once these reach a certain size, they fall due to gravity and are collected or drained.

This process occurs in several stages:

• Pre-filtration of the larger particles
• Coalescence of the microdroplets in the filter media
• Final separation of oil and release of clean air

Thanks to this principle, coalescence filters make it possible to:

• Effectively remove mists from emulsions and whole oils
• Reduce worker exposure to hazardous substances
• Prevent oily residues from settling on surfaces, equipment, and facility interiors
  

The benefits of coalescence filtration in industrial plants

The use of oil mist extraction systems with coalescence technology offers a number of concrete benefits for manufacturing and metalworking companies:

• High separation efficiency, even on smaller particles
• Reduced maintenance, thanks to the long life of the filter elements
• Compatibility with environments where emulsions or oil vapors are produced at high volumes
• Compliance with health and safety regulations, meeting European and national directives on air quality in the workplace

HF Group offers custom-designed oil mist filtration systems based on coalescence technology as well as centrifugal and static systems that can be integrated into advanced modular solutions to ensure maximum efficiency, safety and durability.

Want to eliminate oil mists safely and effectively?

Investing in a well-designed extraction system means improving the working environment, protecting equipment and increasing production efficiency.

Contact us to find out the best system for your company! Our experts will guide you in choosing the right mist filtration solution for your needs.