Indoor Air Quality & Environmental Measurement
Measuring the conditions people actually occupy — carbon dioxide, temperature, humidity, airborne particles, workplace dust and related parameters — in offices, occupied buildings and industrial environments.
Measurement Scope and Parameter Selection
Environmental measurement covers a wide span of parameters, and instruments differ sharply in what they actually measure. Being specific about the question first is what keeps a survey from producing data that cannot answer it.
No single instrument covers every environmental quantity. A multi-parameter IAQ monitor, a dust monitor, a particle counter, a sound meter and a vibration meter are different instruments answering different questions. The product page states the parameters that model actually measures — and that is the authority, not this overview.
Governing references
Guidance is application-specific Select the parameter and measurement method before selecting the instrument. Workplace-exposure limits and building guidance depend on the jurisdiction and purpose of the survey.
Environmental Measurement Parameters
- Carbon dioxideCan be used as a ventilation and occupancy indicator when it is interpreted together with outdoor CO₂, occupancy, how the space is used and the applicable ventilation method. It is an indicator, not a direct measure of ventilation adequacy.
- Carbon monoxideCombustion-related indoor air contaminant, where the survey scope includes it.
- TemperatureThermal condition, and an input to derived psychrometric quantities.
- Relative humidityWith derived values such as dew point, wet-bulb temperature and absolute humidity where the instrument computes them.
- Airborne particlesParticle count or concentration in occupied and industrial spaces.
- Workplace dustReal-time dust, fume, smoke or mist concentration for occupational assessment.
- OdourRelative odour measurement for investigation work, where the application calls for it.
- Sound and vibrationAdjacent occupational and machine-condition parameters in the same portfolio.
| Parameter | What it tells you | Typical instrument type |
|---|---|---|
| CO₂ | Ventilation adequacy relative to occupancy | IAQ monitor |
| CO | Combustion source or exposure concern | Gas-capable IAQ monitor |
| Temperature | Thermal condition, and input to derived psychrometrics | IAQ / thermal instrument |
| Relative humidity | Moisture condition | IAQ / environmental instrument |
| Airborne particles | Particle concentration in the space | Particle counter |
| Workplace dust | Aerosol mass / occupational exposure | Dust monitor |
| Odour | Relative odour intensity, where applicable | Odour instrument |
| Sound | Acoustic environment | Sound level meter |
| Vibration | Machinery or environmental vibration | Vibration instrument |
Scroll the table horizontally →
Applications
Environmental instruments
Specifications come from the product page. Check the product page for the parameters each model measures.
2212CO, CO₂, temperature and relative humidity in occupied space.- CO / CO₂
- Temp / RH
- Derived psychrometrics
- Handheld
3444Real-time dust, fume, smoke or mist monitoring.- Real-time dust
- Fume / smoke / mist
3520 SeriesMass-concentration dust measurement where a piezobalance mass reading is needed.- Mass concentration
- Piezobalance
OMX SeriesRelative odour measurement for investigation work.- Relative odour
- Handheld
Configure an environmental measurement set
Share the parameters required, the environment and duration, whether logging or a spot survey is needed, and the reporting the assessment has to produce.