Throughout its life a filter element is constantly under bombardment from oily, acidic condensate and high velocity dirt particles, which it has to remove and retain to protect your compressed air system. Over time, this can weaken the filter media and reduce filtration performance. This potential but critical reduction in filtration performance cannot be detected by simple differential pressure monitoring techniques. Annual filter element changes are therefore essential, and failure to replace every year could result in reduced production performance, degrading air quality and increased operational costs.