Dust Collector FAQs: What does collection efficiency tell us about the performance of a dust collector?

The performance of different technologies can be compared using what is known as collection efficiency.

Separation efficiency can be measured in two ways. Either you weigh the particles retained by the collector, or you count them.Both methods have their advantages and disadvantages. Weighing is currently (2024) the most commonly used method for regulatory approval or assessment. The method is technically relatively simple to implement and is easy to compare between different instruments. However, weighing particles says little about the efficiency of reducing particularly small and therefore harmful particles. This is where counting comes in. The number of retained particles is more meaningful in the overall assessment, but is also technically more complex. However, there are now reliable methods that provide meaningful results at a reasonable cost.