Workplace Haze Exposure Monitoring Malaysia

Workplace Haze Exposure Monitoring Malaysia

Introduction

Haze pollution can affect employee health, workplace comfort and operational safety across Malaysia. Construction sites, manufacturing facilities, warehouses, maintenance workshops and office buildings may experience elevated airborne particulate concentrations during regional haze events.

For employers, HSE Safety Officers, Safety and Health Officers (SHO) and facility managers, workplace haze monitoring is an important part of environmental risk management.

The Temtop M2000 2nd Portable Air Quality Monitor provides PM2.5, PM10, CO2, HCHO, temperature and relative humidity measurements. It can help workplace teams conduct supplementary air quality screening, investigate indoor environmental conditions and maintain general monitoring records.

MTM Precision Sdn Bhd supplies Temtop M2000 2nd air quality monitoring instruments for industrial, commercial and professional applications throughout Malaysia.

Why Workplace Haze Monitoring Matters in Malaysia

Regional haze can introduce fine particulate matter into outdoor workplaces and occupied buildings.

Workers may encounter different conditions depending on their activities, location, ventilation and exposure duration.

Workplaces potentially affected include:

• Construction sites and civil engineering projects

• Manufacturing factories and production facilities

• Warehouses and logistics centres

• Industrial maintenance workshops

• Building management and facility offices

• Temporary construction site offices

• Outdoor equipment maintenance areas

• Engineering and environmental consulting operations

Fine particles may enter buildings through doors, windows and ventilation systems. Combustion equipment and industrial activities can also contribute to local particulate concentrations.

Workplace haze monitoring can help identify changing environmental conditions and support decisions about ventilation, filtration, housekeeping and further professional assessment.

Understanding PM2.5 and PM10 During Haze

PM2.5 refers to particulate matter with an aerodynamic diameter of 2.5 micrometres or smaller.

PM10 refers to particulate matter with an aerodynamic diameter of 10 micrometres or smaller, including the PM2.5 fraction.

Both are commonly expressed in micrograms per cubic metre (µg/m³).

PM2.5 is particularly relevant during regional smoke and haze events. PM10 measurements can also provide information about larger airborne particles associated with dust-generating activities.

However, portable optical particle monitors do not identify the chemical composition of particles and may be affected by humidity, aerosol characteristics and measurement conditions.

General PM2.5 and PM10 monitoring must not be treated as equivalent to personal occupational dust exposure sampling.

Malaysia DOSH 2026 Haze Guidelines for Workplaces

Malaysia's Department of Occupational Safety and Health (DOSH) has published the Guidelines for the Protection of Employees Against the Effects of Haze at Workplaces, Second Edition 2026.

The guidance addresses workplace risk assessment and protective measures during haze conditions.

Employers should monitor official Air Pollutant Index (API) information and evaluate risks associated with employee activities, visibility, work intensity, health vulnerabilities and environmental conditions.

The guidance includes progressively stronger precautions as haze severity increases, including measures affecting strenuous outdoor activities, earthworks, lifting operations and outdoor work.

Employers must refer to the complete current DOSH guidelines and applicable occupational safety legislation to determine the appropriate precautions for their specific operations.

Importantly, official API values are not equivalent to instantaneous PM2.5 readings from a portable instrument.

The Temtop M2000 2nd does not generate Malaysia's official API and cannot independently establish legal stop-work thresholds.

Official API information is available through Malaysia's Department of Environment (DOE) APIMS service.

Temtop M2000 2nd Air Quality Monitor for Workplace Screening

The Temtop M2000 2nd is a portable multi-parameter air quality monitor designed for general environmental screening and indoor air quality assessment.

Its supported measurements include:

• PM2.5 fine particulate matter

• PM10 inhalable particulate matter

• CO2 carbon dioxide

• HCHO formaldehyde

• Temperature

• Relative humidity

The instrument uses a laser particle sensor for particulate measurements and a non-dispersive infrared (NDIR) sensor for CO2.

Additional features include a TFT colour display, audible alarm, rechargeable battery, measurement history and USB data export.

The combination of particulate and CO2 measurements makes the M2000 2nd useful for supplementary monitoring in offices, occupied industrial spaces and temporary workplace facilities.

The M2000 2nd is not a personal exposure dosimeter, certified respirable dust sampler or reference-grade outdoor air quality station.

Temtop M2000 2nd Technical Specifications

PM2.5:

Sensor: Laser particle sensor

Measurement range: 0–999 µg/m³

Resolution: 0.1 µg/m³

Published accuracy: ±10 µg/m³ from 0–100 µg/m³; ±10% from 100–500 µg/m³

PM10:

Sensor: Laser particle sensor

Measurement range: 0–999 µg/m³

Resolution: 0.1 µg/m³

Published accuracy: ±15 µg/m³ from 0–100 µg/m³; ±15% from 100–500 µg/m³

CO2:

Sensor: NDIR

Measurement range: 0–5,000 ppm

Resolution: 1 ppm

Published accuracy: ±(50 ppm + 5% of reading), within the specified accuracy conditions

HCHO:

Measurement range: 0–2 mg/m³

Resolution: 0.001 mg/m³

Published accuracy: ±0.03 mg/m³ from 0–0.3 mg/m³; ±10% from 0.3–1 mg/m³

Temperature: 0–50°C

Relative humidity: 0–90% RH

Battery capacity: 3,000 mAh

Typical battery life: 6–8 hours

Power input: DC 5V, 1A

Display: TFT colour screen

Data export: USB, CSV format

Accuracy specifications apply only within the manufacturer's stated conditions. The full measurement range must not be assumed to have the same accuracy.

Confirm the supplied instrument revision and user manual before selecting equipment for a particular application.

Six Workplace Applications for Temtop M2000 2nd

1. Factory Indoor Air Quality Screening

Manufacturing companies can use the M2000 2nd to observe general PM2.5 and PM10 conditions in suitable occupied indoor areas.

Readings can help identify changes associated with outdoor haze infiltration, vehicle activity or ventilation conditions.

2. Construction Site Office Monitoring

Temporary construction offices may experience elevated indoor particulate concentrations during haze events.

The M2000 2nd can help site administrators monitor local conditions and evaluate changes after operating air purifiers or adjusting ventilation arrangements.

3. Warehouse and Logistics Facility Monitoring

Warehouse doors, loading bays and vehicle movements can influence indoor particulate levels.

Portable monitoring at selected safe locations may provide supplementary information about environmental conditions.

4. Industrial Maintenance Areas

Engineering and maintenance teams can use the instrument for general particulate screening in suitable sheltered locations.

Specialised occupational exposure testing remains necessary where hazardous dusts, fumes or regulated substances are involved.

5. Office Ventilation Assessment

The M2000 2nd includes an NDIR CO2 sensor.

CO2 measurements can help identify ventilation-related trends in occupied rooms, although they do not directly measure haze severity or establish adequate control of all airborne contaminants.

6. Building and Facility Management

Facility managers can compare particulate readings in occupied spaces during different outdoor haze conditions and review general filtration performance.

How to Conduct Workplace Haze Monitoring

Step 1: Check official Malaysia API information.

Review the latest DOE APIMS readings and relevant DOSH workplace guidance before planning activities affected by haze.

Step 2: Identify the monitoring objective.

Decide whether the purpose is indoor particulate screening, ventilation observation or formal employee exposure assessment.

Step 3: Select representative locations.

Choose safe, suitable monitoring points such as occupied offices, meeting rooms and sheltered work areas.

Step 4: Prepare the instrument.

Check battery level, sensor openings and operating conditions. Allow the instrument to stabilise according to the manufacturer's instructions.

Step 5: Record particulate readings.

Measure PM2.5 and PM10, noting the location, time, nearby activities, ventilation conditions and relevant weather information.

Step 6: Review CO2 where appropriate.

For occupied indoor areas, record CO2 readings separately from particulate measurements.

Step 7: Repeat measurements.

Collect comparable readings over time to identify trends rather than relying on a single measurement.

Step 8: Export measurement records.

Use the M2000 2nd USB data export function to obtain available recorded measurements in CSV format.

Step 9: Review findings with the HSE team.

Consider whether filtration, ventilation, work practices or further professional investigation may be required.

Avoid exposing the instrument to rain, condensation, excessive dust loading or conditions outside its specified operating environment.

How USB Data Export Supports HSE Inspection Records

The Temtop M2000 2nd supports data export through USB in CSV format.

According to the instrument's operating instructions, users can connect the monitor to a computer, access the History menu and select Data Export.

The recorded file can contain time-stamped measurements for PM2.5, PM10, CO2 and HCHO.

HSE teams can combine exported readings with separate inspection records that identify:

• Inspection date and time

• Monitoring location

• Nearby workplace activities

• Official API conditions

• Ventilation or filtration status

• Observed environmental changes

• Follow-up actions

These records are useful for internal environmental screening and trend analysis.

They should not be represented as certified personal exposure measurements, statutory compliance reports or accredited environmental testing certificates.

Workplace Haze Monitoring vs Occupational Exposure Assessment

Workplace air quality screening and occupational exposure assessment serve different purposes.

Portable area monitoring provides information about pollutant concentrations near an instrument at a particular location and time.

Personal occupational exposure assessment may require sampling within a worker's breathing zone over a defined period, using methods appropriate to the contaminant and relevant exposure limits.

For example, evaluating respirable crystalline silica exposure requires specialised sampling and analysis rather than a general PM2.5 reading.

Similarly, an instantaneous PM2.5 concentration cannot be directly compared with an occupational time-weighted exposure limit without the required measurement methodology.

The Temtop M2000 2nd is intended for supplementary environmental screening, not for replacing professional occupational hygiene services.

Practical Haze Risk Reduction Measures for Employers

Employers should implement controls appropriate to the workplace hazards and official guidance.

Measures may include:

• Reviewing official API updates

• Conducting workplace risk assessments

• Reducing or rescheduling strenuous outdoor activities where appropriate

• Reviewing employee health vulnerabilities

• Improving filtration in occupied indoor areas

• Maintaining suitable ventilation arrangements

• Limiting unnecessary particle infiltration

• Providing suitable respiratory protection when required

• Monitoring changing indoor particulate conditions

• Seeking professional occupational hygiene advice where necessary

Portable air quality instruments can support general monitoring, but safe working decisions must consider the complete workplace risk assessment.

Why Choose Temtop M2000 2nd for General Workplace Air Quality Monitoring?

The Temtop M2000 2nd combines several measurement functions in one portable instrument.

Key advantages include:

• PM2.5 and PM10 particulate measurements

• NDIR CO2 monitoring

• HCHO formaldehyde measurement

• Temperature and humidity monitoring

• Rechargeable portable operation

• TFT colour display

• Audible alarm functionality

• USB data export for recorded readings

For Malaysian HSE departments, the instrument can provide practical supplementary information for indoor environmental checks and general workplace air quality investigations.

Customers requiring certified occupational exposure testing, continuous outdoor monitoring or specialised dust analysis should select equipment designed for those purposes.

Frequently Asked Questions About Workplace Haze Monitoring

Can Temtop M2000 2nd measure PM2.5 and PM10?

Yes. The M2000 2nd supports both PM2.5 and PM10 measurements.

Does Temtop M2000 2nd measure CO2?

Yes. It uses an NDIR carbon dioxide sensor with a published measurement range of 0–5,000 ppm.

Can the M2000 2nd measure official Malaysia API?

No. Official API information is published through DOE APIMS. Portable PM2.5 readings are not equivalent to official API values.

Can HSE Officers use the M2000 2nd for workplace inspections?

Yes, for supplementary air quality screening in suitable environments. It does not replace statutory exposure assessment or professional occupational hygiene testing.

Can the M2000 2nd determine whether outdoor work must stop?

No. Stop-work decisions must consider official API information, applicable DOSH guidance and the relevant workplace risks.

Can the M2000 2nd measure respirable crystalline silica exposure?

No. Specialised occupational sampling and laboratory analysis are required.

Does the M2000 2nd support data export?

Yes. Recorded measurements can be exported through USB in CSV format.

Is it suitable for outdoor haze monitoring?

The instrument may be used for suitable short-duration environmental screening where operating conditions permit. It is not a weatherproof continuous outdoor monitoring station.

Where to Buy Temtop M2000 2nd in Malaysia

MTM Precision Sdn Bhd supplies Temtop M2000 2nd Portable Air Quality Monitors for industrial, commercial, construction and workplace environmental applications.

We welcome enquiries from Kuala Lumpur, Selangor, Johor, Penang, Melaka, Negeri Sembilan, Perak, Pahang, Kedah, Kelantan, Terengganu, Perlis, Sabah and Sarawak.

Customers may contact MTM Precision for assistance with selecting air quality monitoring equipment based on required parameters, workplace conditions and intended applications.

MTM Precision Sdn Bhd

Showroom & Service Centre

No. 29-1 & 29-2, Jalan Bandar 18,

Pusat Bandar Puchong,

47160 Puchong, Selangor, Malaysia.

Tel: 03-8080 7172

WhatsApp: +6016-660 7346

Email: mtmpre@yahoo.com

Website: www.mtmpre.com.my

Send your application details to MTM Precision through WhatsApp for Temtop M2000 2nd product information and workplace air quality monitoring assistance in Malaysia.

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