The Monroe Multi-Stage Oil Mist Collector is designed to collect and remove airborne oil mist, smoke, and sub-micron vapors generated by operations such as high production machining and cold forming. It is a multiple stage collector that has proven capabilities exceeding 99% efficiency on many installations.
Multi-Stage Oil Mist Collector
The Monroe Multi-Stage Oil Mist Collector is available in capacities from 500 CFM to over 80,000 CFM in a single unit and may be integrated with existing ductwork and ventilation systems.
After installation of Monroe Multi-Stage Oil Mist Collectors, high production machining areas using water soluble, synthetic or mineral coolants can discharge clean, filtered air back into the work area, reducing system costs.
Designed for Minimum Maintenance
The Monroe Multi-Stage Oil Mist Collectors are designed for continuous draining during operation, resulting in typical filter media life of 4,500 hours or more, even under heavy inlet loading.
Design Leadership

The Monroe Multi-Stage Oil Mist Collector, with more filter media, longer operating time between filter changes, and higher collection efficiency, outperforms all other collectors in its class. Because of slower internal velocities through the collector, media replacement and maintenance labor costs are reduced. Collected oil mist and solids are continuously drained from the media without shut-down, significantly prolonging filter life and lowering overall operating costs.
Many Configurations Available
Meeting Condensable Particulate & PM2.5 Regulations
Monroe’s application and process engineers can assist with evaluating your specific requirements and designing an appropriate solution.

The Monroe Multi-Stage Oil Mist Collector can meet the most stringent regulations for PM2.5 and condensable particulate matter. See Recent Project
Recent Projects
Multi-Stage Oil Mist Collector Applications
Machining operations
Parts washer exhaust
Metal cutting
Metal forming
Rolling mills
Tool & die
And many others
Resources & Literature
Recent Case Studies
Air | Oil Mist Collector for Fiber Plant
Monroe Multi-Stage Mist Collector operates at 95% efficiency, treating 0.3 micron sized oil mist particles for synthetic fiber plant.