Enviro Technology Services Ltd

- Rapid Diffusion Samplers



Rapid Diffusion Samplers are ideal for all rapid indoor, outdoor, personal and workplace air monitoring of VOCS and Nitrogen Dioxide. Description: A plastic (H.D.P.E) circular diffusive red/black sampler containing a sorbent for measuring gaseous nitrogen dioxide in ambient air. This sampler is designed to provide a considerably higher uptake rate than the passive axial diffusion tube which allows a higher flexibility of ambient air pollution measuring in outdoor and indoor environments. It can also be used effectively as a personal sampler for health & safety monitoring in workplace and public / social environments.

  • Fast uptake rates without the use of pumps
  • Monitoring periods from 1 hour to 7 days
  • Easy to use
  • No tools required

Air pollution has become a major issue in our developing world and measures to control and improve ambient air environments in our cities and countryside are on the increase.

Rapid Diffusion Samplers can be used for monitoring problem areas such as landfill sites, boundary areas, traffic congestion and suspected contaminated sites.

They are an excellent and cost effective tool for consultants investigating sites that have been highlighted as a possible problem area. They offer an efficient alternative method of sampling to that of the canister which is not only bulky but requires both pump sampling and efficient cleaning. The analysis methods are also identical to the canister i.e Gas Chromatography/Mass Spectroscopy.

The Rapid Diffusion Samplers offer a quick, low cost overview of the site which can be then be acted on subject to results found, saving companies time and money in the long run.


  • Roadside
  • Background
  • Spatial Assessments


  • Boundary Monitoring
  • Stack Assessments
  • Petrochemicals

Personal /Workspace

  • Health & safety
  • Hospitals
  • Risk Assessments


  • Offices and New Buildings
  • Car Interiors
  • New Buildings/Developments

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