Office & commercial monitoring
Workplace air quality monitoring — comfort, performance and ventilation
Continuous workplace air quality monitoring connects what occupants feel to what facilities teams can change. It is general IAQ monitoring, distinct from regulated occupational exposure assessment.
Scope
What workplace monitoring actually covers
The brief is broader than CO₂. A defensible programme measures the parameters that change building decisions.
CO₂
The most useful single signal of whether ventilation is keeping up with occupancy.
PM2.5
Indoor particulate from outdoor infiltration, printing, cooking and refurbishment dust.
TVOC (indicative)
Aggregate VOC trend — useful for detecting cleaning, material and process events.
Temperature & humidity
Thermal comfort and humidity-driven complaints, mould risk and material behaviour.
Occupancy context
Density and dwell time help interpret what the air data actually means.
Ventilation indicators
Damper positions and supply temperatures where BMS integration is available.
Approach
Short investigations and continuous monitoring
Two approaches earn their place in workplace IAQ. Short investigations — typically 1–4 weeks across representative zones — characterise a complaint, a refurbishment or a new tenancy. They produce a defensible baseline and a recommended action list.
Continuous monitoring sits behind the long-running operation. Networked sensors across critical zones feed dashboards, alerts and quarterly reports. Facilities teams get a feedback loop on ventilation strategy, fit-out impact and changing occupancy patterns.
The clinical distinction matters: continuous workplace monitoring is for managing the building. Where workplace activities involve regulated exposure to specific substances, occupational hygiene methods apply — a different evidence base.
Use cases
When to invest in workplace monitoring
Occupant complaints
Headaches, stuffiness, drowsiness — data quickly separates ventilation issues from thermal comfort.
Post-refurbishment
Verifying VOC decay and ventilation effectiveness before reoccupation.
Hybrid working
Variable occupancy challenges fixed ventilation; sensors expose the gap.
ESG & wellbeing reporting
Validated IAQ data feeds wellbeing certifications and ESG narratives.
Reference targets
Steady-state workplace benchmarks
These are commonly used operational targets; they are not statutory limits and should be applied with judgement.
| Parameter | Acceptable | Action threshold |
|---|---|---|
| CO₂ | <1000 ppm | >1500 ppm |
| PM2.5 | <10 µg/m³ | >25 µg/m³ |
| TVOC (indicative) | Stable baseline | Sustained rise above baseline |
| Temperature | 20–24 °C | Outside 19–26 °C |
| Relative humidity | 40–60 % | Outside 30–70 % |
Limits
What workplace IAQ monitoring is not
Not occupational exposure
Regulated substance exposure requires specific occupational hygiene methods.
Not medical diagnosis
Sensors describe the environment, not occupant health outcomes.
Not standalone evidence
Interpretation needs building context, occupancy and ventilation design.
FAQ
Workplace air quality monitoring questions
Discuss an Air Quality Monitoring Project
Workplace IAQ monitoring scoped, deployed and reported for UK offices and commercial estates.
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