In a commercial environment—from high-traffic shopping malls to basement car parks and chemical laboratories—the exhaust system is the "vacuum cleaner" of your building. Its job is to remove heat, odors, toxins, and carbon monoxide. A Commercial Exhaust Audit is a specialized mechanical and volumetric assessment to ensure your extract fans are actually pulling the required air volume to keep the building safe and legally compliant.
As part of a Ventilation Systems Audit, EKG performs these audits to identify "choked" fans, leaking ducts, and motor inefficiencies that drive up your energy costs.
An audit identifies failure points in the three main types of commercial extract:
Kitchen / F&B Grease Exhaust: Measuring the "Capture Velocity" at the hood. If the exhaust is too weak, grease settles in the ducts, creating a massive fire risk.
Toilet & General Extract: Ensuring that odors are contained. If these fans fail, "negative pressure" pulls restroom air into your clean office lobby.
Car Park CO Extraction: Verifying that Carbon Monoxide levels are kept safe. These fans are massive energy users and are often running at 100 percent speed unnecessarily.
Smoke-Spill Safety: Ensuring that in a fire, the fans can move the high-volume air required by BOMBA regulations to keep exit routes clear.
We use precision metrology to verify the "Actual vs. Design" performance of your exhaust network:
Volumetric Flow Measurement: We use Air Flow Hoods and Vane Anemometers to measure the exact CFM (Cubic Feet per Minute) being pulled from every grille.
Static Pressure Profiling: We measure the "suction" inside the ductwork. High resistance often means a fire damper has snapped shut or the duct is internally collapsed.
Impeller "Lift" Analysis: We inspect the fan blades. In KL's humidity, dust and grease "load" the blades, changing their shape and reducing their ability to "bite" the air.
VFD Duty Cycle Audit: We analyze your Variable Frequency Drive (VFD) settings. Many car park fans run at 50Hz (Full Speed) 24/7, wasting thousands of Ringgit when CO levels are zero.
Exhaust fans are often the most "over-designed" fans in a building. An audit proves where you can safely reduce speed without losing safety.
Speed Optimization: By linking your exhaust fans to sensors (CO or Humidity), you can dramatically lower motor speeds during off-peak hours.
The Logic: Because of the Cube Law, a 20 percent reduction in fan speed results in a nearly 50 percent reduction in power consumption. A Commercial Exhaust Audit provides the "Safety Data" needed to lower your VFD frequencies.
| Exhaust Type | Target Face Velocity | EKG Audit Focus |
| Kitchen Hood | 0.50 to 0.75 m/s | Grease Capture & Fire Safety |
| Toilet Extract | 10 to 15 ACH | Odor Containment & Negative Pressure |
| Car Park | 6 to 10 ACH | CO Level Monitoring & VFD Savings |
| Chemical Lab | 0.50 m/s (Fume Hood) | Occupant Toxin Protection |
| General Office | 1 to 2 ACH | Stagnant Air Removal |
Mechanical Restoration Path: If the audit shows low suction, we don't just give you a report. We are experts in Mechanical Fan Overhauls, providing chemical degreasing, bearing replacement, and dynamic balancing.
BOMBA & Health Compliance: We ensure your smoke-spill and grease exhaust systems meet the latest 2026 Malaysian fire safety and DOSH (JKKP) health codes.
VFD ROI Projection: We calculate exactly how much money you will save by switching your car park or toilet fans to "Demand-Based" control.
Duct Integrity Checks: We identify where exhaust air is "leaking" back into the ceiling void, which often causes mysterious smells and humidity issues.
Malaysia
