#### 7.3.4.5 Pset_FilterPHistory

PSET_PERFORMANCEDRIVEN / IfcFilter

| Filter performance history attributes.

buildingSMART Data Dictionary

PSD-XML

- CountedEfficiency
  P_REFERENCEVALUE / IfcTimeSeries / IfcReal

  | CountedEfficiency: Filter efficiency based the particle counts concentration before and after filter against particles with certain size distribution.

- WeightedEfficiency
  P_REFERENCEVALUE / IfcTimeSeries / IfcReal

  | WeightedEfficiency: Filter efficiency based the particle weight concentration before and after filter against particles with certain size distribution.

- ParticleMassHolding
  P_REFERENCEVALUE / IfcTimeSeries / IfcMassMeasure

  | ParticleMassHolding: Mass of particle holding in the filter.

Link to this page