Occupational Hygiene · Air

What's in the air your people breathe.

Comprehensive indoor air quality testing — VOCs, dust and particulates, mould spores, CO2 and humidity — benchmarked against ASHRAE 62.1 and WHO IAQ guideline values. The data tells you where the problem is and what to fix first.

Indoor air quality assessment

Poor indoor air quality is associated with a range of health effects, from headaches and respiratory irritation to more serious conditions with prolonged exposure. An IAQ assessment gives you an objective picture of your indoor environment and identifies the contaminants that warrant intervention.

Sampling is led by a MAIOH-qualified occupational hygienist using calibrated direct-reading instruments and validated sampling media. Mould spore samples are processed in our own laboratory; volatile and particulate analytical chemistry is routed through IANZ-accredited partner laboratories.

What we test

  • Volatile Organic Compounds (TVOC + speciation where relevant)
  • Inhalable and respirable particulates (PM2.5, PM10)
  • Mould spores — airborne fungal concentrations and genus identification
  • Carbon dioxide (CO2) — indicator of ventilation adequacy
  • Relative humidity and temperature trends
  • Carbon monoxide (CO) where combustion sources are present

Combined mould + IAQ assessments

Where mould concerns exist alongside broader air quality questions, we conduct a combined assessment and produce a single comprehensive report. Mould samples run in our own laboratory; IAQ chemistry routes through IANZ-accredited partners. Combining the two saves time and gives better context for remediation decisions.

What you receive

A complete picture of the indoor environment.

  • VOC concentrations (TVOC + key species where relevant)
  • Particulate measurements (PM2.5 and PM10)
  • Mould spore counts and genera (where requested)
  • CO2, humidity and temperature time-series
  • ASHRAE / WHO benchmarking with exceedance flagging
  • Plain-English summary plus technical appendix

Two ways to start

Take the guesswork out of indoor air.

Tell us the building, the occupants, and what's prompting the question. We'll quote scope and turnaround.