The Dekati® eFilter™ is a completely new instrument that adds real-time PM detection into a standard gravimetric filter holder. The Dekatii® eFilter™ assembly is approximately the same size as a normal PM filter holder and it fits directly into all existing exhaust PM filter sampling systems including CVS tunnels.

In addition to the standard gravimetric filter measurement, the Dekati® eFilter™ gives a real-time signal throughout the filter sampling period which allows monitoring PM accumulation on the filter during different stages of the filter sampling. This real-time signal changes the standard filter holder into a sensitive, dynamic measurement instrument for modern routine emission measurements.


  • Standard gravimetric filter measurement that meets US EPA requirements
  • Compatible with existing gravimetric PM measurement filter holders and sampling systems
  • Automated and sensitive real-time PM measurement
  • Battery operated with internal pump for real-time PM measurement
  • Fully automated operation
  • Plug-and-play and maintenance free instrument


  • Air quality measurement both indoors and outdoors
  • Engine emission measurements
  • Industrial emission measurements

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