Dräger Diffusion Tubes, OEL (Occupational Exposure Limit) Measurement

The Dräger diffusion tubes are dosimeter tubes that allow the control of individual exposures, particularly the measurement of OEL (Occupational Exposure Limit). This measurement system is called "passive" and is based on the diffusion of contaminant molecules in the air. It does not require a pump, unlike conventional colorimetric reagent tubes.

  • A simple and economic method of measurement of the limit occupational of exposure (OEL)
  • Worn directly near the respiratory tract, like a badge
  • Direct reading, graduated scale printed on the tube
  • Does not require a sampling pump
  • Simple and economical measurement method
Additional information

Dräger diffusion tubes quantitatively measure the presence of a gas in the ambient air. Also known as dosimetric tubes or passive reagent tubes, they are particularly popular for OEL and OEL ST monitoring. Attached to the worker by a clip, the diffusion tube measures the target substance throughout the work period (usually 8 hours).

It is a simple and economical method of measurement to monitor the OEL (Occupational Exposure Limit), requiring no special technical skills, no analysis costs in a specialized laboratory, and no waiting time. The result of the measurement can be read directly on the graduated tube.