Indoor Air Quality Monitoring for ESG: What Malaysian Companies Should Measure
Indoor Air Quality Monitoring for ESG: What Malaysian Companies Should Measure
Indoor Air Quality (IAQ) is becoming an increasingly important consideration for offices, factories, warehouses, laboratories, commercial buildings and other workplaces in Malaysia.
As companies develop their ESG, workplace safety and environmental management programs, one practical question often appears:
What is the actual condition of the air inside our workplace?
Without measurement, it is difficult to answer.
Indoor air quality monitoring instruments allow companies to measure selected environmental parameters, establish baseline conditions and maintain records for internal assessment and improvement.
How Does Indoor Air Quality Relate to ESG?
Indoor air quality can connect with more than one aspect of ESG.
Environmental — E
Companies may monitor environmental conditions within buildings and facilities as part of broader environmental management activities.
Social — S
Employees spend many hours inside offices, factories and other workplaces.
Monitoring workplace environmental conditions can support occupational health, employee well-being and facility-management initiatives.
Governance — G
Companies may establish procedures for:
Periodic IAQ checks
Measurement records
Instrument management
Corrective actions
Internal reporting
Equipment calibration
The objective is not simply to say:
“Our indoor air quality is good.”
A more measurable approach is:
“These are the parameters we monitor, these are the readings, and these are the records.”
What Should Companies Measure for Indoor Air Quality?
There is no single parameter that represents all aspects of indoor air quality.
Depending on the workplace and objective, companies may consider parameters such as:
CO₂
PM2.5
PM10
TVOC
Formaldehyde (HCHO)
Temperature
Relative humidity
Some multi-function IAQ monitors can measure several parameters simultaneously.
1. CO₂ Monitoring
Carbon dioxide is commonly monitored in occupied indoor environments.
CO₂ levels can provide useful information when investigating ventilation conditions and occupancy patterns.
Potential monitoring locations include:
Offices
Meeting rooms
Training rooms
Classrooms
Control rooms
Staff areas
Commercial buildings
A portable CO₂ meter provides immediate readings.
A CO₂ data logger provides something additional:
history.
Instead of knowing only the concentration at 10:00 AM, companies can observe how readings change throughout the working day.
2. PM2.5 Monitoring
PM2.5 refers to fine particulate matter.
Possible sources affecting indoor conditions may include:
Outdoor pollution
Traffic
Industrial activities
Combustion
Dust-generating processes
Construction
Smoking
Poor filtration
PM2.5 monitors allow companies to compare conditions between locations and different periods.
For example:
Before production starts → During production → After production
or
Before filtration improvement → After filtration improvement
Measurement makes comparison possible.
3. PM10 Monitoring
PM10 represents larger inhalable particles compared with PM2.5.
PM10 monitoring can be particularly relevant in environments involving:
Dust
Construction materials
Warehousing
Manufacturing
Cutting
Grinding
Material handling
Companies with dust-generating processes may benefit from understanding how particulate levels change according to activity and location.
4. Formaldehyde — HCHO
Formaldehyde may be associated with certain:
Building materials
Furniture
Adhesives
Wood products
Coatings
Manufacturing processes
Newly renovated environments
Portable HCHO meters can be useful for screening and investigation.
Where formal assessment or compliance testing is required, companies should ensure that the selected instrument and measurement method are suitable for the applicable requirement.
5. TVOC Monitoring
TVOC stands for Total Volatile Organic Compounds.
Potential VOC sources may include:
Paint
Solvents
Adhesives
Cleaning chemicals
Printing materials
Manufacturing processes
Furnishings
Renovation materials
TVOC monitoring can help companies identify changes or unusual conditions.
However, TVOC measurements should not automatically be interpreted as identifying individual chemical compounds.
More specific analysis may be required when individual substances need to be determined.
6. Temperature
Temperature is one of the most basic workplace environmental measurements.
It may affect:
Employee comfort
Storage conditions
Equipment
Production processes
Product quality
Facility operation
Digital thermometers and temperature data loggers can be used depending on whether spot measurements or continuous records are required.
7. Relative Humidity
Humidity is closely related to indoor environmental conditions.
Monitoring temperature and relative humidity together can provide more useful information than measuring temperature alone.
Temperature and humidity data loggers are particularly useful for:
Offices
Warehouses
Laboratories
Production rooms
Server rooms
Storage facilities
Spot Measurement vs Continuous Monitoring
This is an important distinction.
Spot Measurement
A handheld IAQ meter answers:
“What is happening now?”
This is useful for:
Troubleshooting
Site inspection
Comparing locations
Quick checks
Continuous Monitoring
A data logger or continuous monitor answers:
“What has been happening over time?”
This is useful for identifying:
Daily patterns
Peak readings
Occupancy effects
Production-related changes
Ventilation changes
Abnormal events
For companies building environmental records, continuous monitoring can provide valuable historical information.
Example: Office IAQ Monitoring
A company wants to understand conditions in a meeting room.
Instead of measuring only once, it installs a logger.
The company may discover:
8:00 AM — Low occupancy
CO₂ levels are relatively low.
10:00 AM — Meeting begins
CO₂ begins increasing.
12:00 PM — Meeting ends
CO₂ gradually decreases.
Now the company has useful information about how occupancy and ventilation conditions interact.
This is much more informative than one isolated reading.
Example: Factory IAQ Monitoring
A manufacturing company may monitor:
PM2.5 + PM10 + CO₂ + Temperature + Humidity
Measurements can be taken at:
Production area
Office area
Warehouse
Entrance
Outdoor reference location
Comparing readings may help the company identify where further investigation is needed.
Why Data Logging Supports ESG Monitoring
ESG programs increasingly depend on measurable information.
Consider the difference:
Statement:
“We monitor our workplace environment.”
versus
Evidence:
“Here are our recorded IAQ measurements for the last six months.”
The second statement is supported by data.
That is why data-logging capability can become increasingly valuable for companies developing more structured environmental monitoring programs.
Can an IAQ Meter Prove ESG Compliance?
No.
An IAQ meter does not make a company ESG compliant.
It is a measurement tool.
ESG management may involve policies, procedures, targets, reporting, employee practices, governance and many other requirements.
IAQ instruments provide one important component:
measurable workplace environmental data.
How to Choose an IAQ Monitor
Before purchasing, companies should determine which parameters are actually required.
Ask:
What do you need to measure?
CO₂?
PM2.5?
PM10?
HCHO?
TVOC?
Temperature and humidity?
Do you need data logging?
For occasional troubleshooting, a handheld meter may be sufficient.
For historical monitoring, consider a model with data-logging capability.
Where will it be used?
Office?
Factory?
Warehouse?
Laboratory?
Commercial building?
Is the measurement for screening or formal assessment?
This distinction is important.
Different applications may require different instruments, specifications and measurement methods.
Indoor Air Quality Monitoring Equipment Malaysia
MTM Precision supplies various environmental and indoor air quality measurement instruments for Malaysian applications, including:
Indoor Air Quality Monitors
CO₂ Meters
PM2.5 Monitors
PM10 Monitors
Formaldehyde / HCHO Meters
TVOC Meters
Temperature & Humidity Meters
Temperature & Humidity Data Loggers
Environmental Data Loggers
Sound Level Meters
Lux Meters
Gas Detectors
Industrial Environmental Measuring Instruments
Companies can select instruments according to the required parameters, application, measurement range, accuracy and logging requirements.
Start with the Parameters That Matter
A company does not necessarily need to monitor everything.
Start by asking:
What environmental conditions matter to our employees, operation, customers and facility?
Then:
Measure → Record → Review → Improve
Over time, this creates something valuable:
environmental measurement history.
And when management, customers or auditors ask for information, the company is better prepared to provide actual data rather than estimates.
Contact MTM Precision
MTM Precision Sdn. Bhd.
Showroom & Service Centre
No. 29-1 & 29-2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia
📱 WhatsApp: +6016-660 7346
Looking for an Indoor Air Quality Monitor in Malaysia?
Tell MTM Precision which parameters you need to measure — CO₂, PM2.5, PM10, HCHO, TVOC, temperature or humidity — and we can help identify a suitable instrument for your application.
Don't assume the air is good. Measure it.
Aug 13,2026