Professional IEQ assessments conducted by DOSH-certified personnel to evaluate indoor air conditions, thermal comfort, and environmental factors affecting occupant health, comfort, and productivity.
Assessments conducted by DOSH-certified IAQ assessors
Full IEQ parameter measurement based on DOSH requirements
Clear findings with actionable improvement recommendations
Indoor Environmental Quality issues often go unnoticed until occupants begin experiencing discomfort, health complaints, or productivity loss.
Poor IEQ can result from a combination of:
IEQ testing provides objective data to identify these issues early and support informed corrective actions.
Our IEQ testing covers the key environmental parameters required under Malaysia DOSH guidelines, ensuring a comprehensive evaluation of indoor conditions.
Physical Parameters
Chemical Contaminants
Biological Contaminants
Environmental Comfort
All measurements are taken using calibrated instruments and standardised sampling methods.
Commercial HVAC duct systems accumulate contaminants over time, often without visible signs. Our robotic duct cleaning process follows NADCA-recognised source removal principles, ensuring contaminants are physically removed from internal duct surfaces in a controlled and documented manner.
We review the building layout, occupancy patterns, HVAC operation, and complaint history (if any) to determine appropriate sampling locations and timing.
Our DOSH-certified assessors conduct on-site testing across selected areas to measure all relevant IEQ parameters under actual operating conditions.
Collected data is analysed against DOSH guideline values to identify non-compliance, risk areas, and potential causes.
You receive a structured IEQ report detailing:
IEQ testing evaluates indoor environmental conditions that affect occupant health, comfort, and performance. It goes beyond air quality alone and includes thermal comfort, ventilation, contaminants, and environmental stressors.
All IEQ assessments are carried out by DOSH-certified IAQ assessors with experience in commercial and industrial environments.
The duration depends on building size, number of sampling locations, and parameters tested. Most assessments are completed within one site visit, followed by reporting.
Testing is non-intrusive and conducted during normal operating hours wherever possible, with minimal disruption to occupants.
The report will clearly outline the findings and provide practical recommendations to improve IEQ. Corrective actions can then be planned based on priority and feasibility.
© 2026 IAQ Facility Services Sdn.Bhd. All Rights Reserved
