Airtec Diesel Particulate Monitor (Replicates NIOSH 5040)

The FLIR Systems Airtec Diesel Particulate Monitor is a compact and highly portable real-time elemental carbon monitor designed to determine exposure of workers in underground mines to diesel particulate material (DPM).

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The Airtec monitor is a compact and highly portable real-time elemental carbon monitor designed to determine exposure of workers in underground mines to diesel particulate material (DPM). Airtec uses a real time particle capture and light transmission method to yield elemental carbon values which closely correlate with NIOSH 5040 test results to measure EC and TC levels in underground mines.

Diesel particulates are composed primarily of elemental and organic carbon, and have been found to present a health hazard. DPM levels can be high in workplaces where diesel equipment is used; particularly so in underground mines due to the enclosed workspace.

Airtec is designed to allow the operator and management to take immediate, remedial action to address a problem area within a mine. Levels can also be tracked over time to determine the possibility of long term health hazards and help eliminate the risks associated with over exposure.

Airtec operates on a Lithium-ion battery for more than a full shift or AC power using an adapter. Readings are displayed on an LCD screen with a user-selectable backlight and data can be downloaded using supplied software via USB connection for review of an extended monitoring period. The instrument has an integrated air pump and submicron particle size selector; allowing for immediate use.

Operational Advantages Key Advantages
  • Real time results
  • No more waiting days or weeks for results
  • Can be worn on a belt or vehicle/wall mounted
  • Light and highly portable
  • No filters to send to an outside lab
  • All measurements done on the instrument
  • Easy to use
  • Self-explanatory interface
  • Verifies effectiveness of ventilation
  • Allows corrective action to be taken
  • Generates dozens to thousands of EC concentration values for less than a single NIOSH 5040 test
  • Can connect to a data network via optional 4-20 mA output
  • Specifically detects DPM (via EC measurements); no sensitivity to common mine interference
  • Results closely correlate with the NIOSH 5040 Method
  • Real time results are displayed for the user as well as stored for later analysis
  • Lightweight, rugged device
  • Wearable by miners on a belt loop
  • High sensitivity to DPM
  • Contains a flow-selectable air pump
  • Equivalent results to NIOSH method 5040
  • Large display
  • Battery or AC power
  • Decreased DPM monitoring costs
  • Helps prevent MSHA non-compliance
  • Increased miner safety
  • High DPM level alarms
  • Allow engineering control evaluation
  • Enables ventilation on demand (VOD)
  • Bolsters confidence in a healthy environment


< 15 µg/m3 elemental carbon (EC)
Dynamic Range
9-600 µg/m3 (8hr TWA EC)
Data Archive
2.75 to 66.6 days (1 min. to 1 hr sample intervals)
  • LCD display with user-controlled backlight;
  • User selectable 1, 5, 15 min. averaging EC and TC data logged 8 hr TWA
  • DPM levels;
  • Mini-USB connection;
  • Optional 4-20 mA output
Alarms LCD alerts user of Low battery, Filter change, and Pump flow
Power 7.4 VDC (built-in Li-ion rechargeable battery); 100 - 240V AC adaptor
Battery Life >12 hrs (continuous use)
System Weight 1.5 lbs (681g)
Dimensions 4.75”(H) x 5.25”(W) x 2.5”(D) / 12.1cm(H) x 13.3cm(W) x 6.4cm(D)


  • Determines exposure of diesel particulate material in underground mines