In 2026, a single "spot check" of air quality is no longer sufficient to ensure a healthy building. Indoor Air Quality (IAQ) Data Logging is the process of placing high-precision digital sensors throughout your facility to track air health over a 24 to 72-hour cycle. In Kuala Lumpur’s tropical climate, IAQ changes dramatically between the morning "cool-down," the afternoon occupancy peak, and the evening shutdown.
As part of a Ventilation Systems Audit, EKG performs this continuous monitoring to identify exactly when and where your ventilation system is failing to protect your occupants.
Static readings often miss the "hidden" spikes in pollutants that occur during a normal business day:
The CO2 "Afternoon Slump": We often find that CO2 levels are perfect at 9:00 AM but exceed 1200 ppm by 3:00 PM, causing staff headaches and "brain fog."
Humidity Cycles: We track if your Relative Humidity (RH) stays within the safe 45% to 60% range. If it spikes to 80% overnight when the AC is off, mold will grow in your ducts.
PM2.5 Haze Ingress: Data logging identifies if outdoor pollution is "leaking" into your building during KL's haze periods, proving whether your filters are actually working.
VOC Accumulation: We monitor Volatile Organic Compounds (VOCs) from cleaning agents or new furniture that "off-gas" and reach toxic levels when the fans are at low speed.
We use a network of cloud-connected sensors to build a "Heat Map" of your building's breathability:
Multi-Parameter Tracking: Our logs simultaneously record CO2, PM2.5, PM10, TVOCs, Temperature, and Humidity.
Occupancy Correlation: We overlay your IAQ data with your building's occupancy schedule. This proves if your Variable Frequency Drive (VFD) is ramping up correctly when people arrive.
Fresh Air Intake Audit: By logging CO2 at the AHU intake versus the office floor, we calculate the "Mixing Efficiency" of your ventilation system.
Stagnant Zone Identification: We find the "Dead Corners" where air doesn't move, even when the main fans are at 100% speed, indicating a ductwork or diffuser blockage.
IAQ Data Logging is the "Intelligence" behind Demand Control Ventilation (DCV). It proves that you don't always need to run your fans at full speed.
Speed Optimization: If the data shows your air is "Healthy" (CO2 < 600 ppm) for 4 hours a day, we can safely slow down the fans.
The Logic: Because of the Cube Law, a 20 percent reduction in fan speed results in a nearly 50 percent reduction in power consumption. IAQ Data Logging provides the "Safety Margin" to save energy without risking health.
| Parameter | Healthy Office Target | "Sick Building" Trigger |
| Carbon Dioxide (CO2) | 400 to 800 ppm | > 1100 ppm (Stale Air) |
| Relative Humidity (RH) | 50% to 60% | > 70% (Mold Risk) |
| PM2.5 (Fine Dust) | < 15 ug/m3 | > 35 ug/m3 (Filter Failure) |
| TVOCs | < 500 ug/m3 | > 3000 ug/m3 (Chemical Load) |
| Temperature | 23°C to 25°C | > 26°C (Cooling Failure) |
Actionable Mechanical Solutions: We don't just give you a graph. If we see high CO2, we perform a Mechanical Fan Overhaul or Duct Restoration to fix the airflow problem.
DOSH (JKKP) Compliance: Our logging reports are designed to meet the 2026 Malaysian Industrial Code of Practice (ICOP) for Indoor Air Quality.
VFD Integration: We use the logged data to help you program your VFD setpoints, ensuring your fans only work as hard as the air quality requires.
Detailed Reporting: You receive a full digital log with "Red-Flag" alerts, showing exactly which AHUs or zones need urgent maintenance.
Malaysia
