Instantly identify compartment - Reduce maintenance time. Large filter plant perform a harsh duty, continuously removing particulates from final emissions to atmosphere.  Strict environmental compliance demands that these filter plant operate on a continuous basis.  Fabric filter bags will have a limited life span and will eventually require replacing.  A failure of a filter bag due to prolonged abrasion and repeated blow-back will result in a rapid and large release of particulates to the atmosphere.  identifying the problem bag and getting the replacement fitted rapidly can make the difference between a minor and a major emissions breach.