Cleanroom AHU (Air Handling Unit)
Maintaining Environmental Integrity with Custom-Built Cleanroom AHUs
In a controlled environment, the Air Handling Unit (AHU) is the lungs of the facility. At Metrolabs, we provide high-accuracy engineered AHUs designed specifically for the rigorous demands of microbiology, pharmaceutical, and healthcare sectors. Unlike standard HVAC systems, our Cleanroom AHUs are built to maintain precise pressure gradients, humidity levels, and ultra-low particulate counts.
Our units ensure long-term performance and strict compliance with ISO 14644 and GMP standards, providing a safe and sterile atmosphere for your most sensitive operations.
Engineered for Sterile Performance
A Metrolabs AHU is designed to eliminate contamination at the source. We focus on structural integrity and advanced filtration to ensure that the air entering your cleanroom is of the highest quality.
Double-Skin Modular Construction
To prevent heat loss and air leakage, our AHUs feature a double-skin casing with high-density insulation. Thermal Bridging Prevention: Engineered to eliminate "cold spots" that cause condensation and microbial growth. Internal Finish: Smooth, non-porous internal surfaces (often Stainless Steel) that are easy to disinfect and resistant to corrosion.
Precise Environmental Control
Beyond filtration, our AHUs manage the critical "vitals" of your cleanroom: Constant Air Volume (CAV) / Variable Air Volume (VAV): Maintains stable pressure differentials between different cleanroom zones. Humidity Management: Integrated dehumidifiers and humidifiers ensure that sensitive biological samples or chemical reagents remain stable.
Multi-Stage Filtration System
We utilize a tiered approach to air purification to extend the life of your filters and ensure absolute sterility: Pre-Filters (G4/F7): Capture larger dust particles to protect the core components. Fine Filters (F9/H13): Eliminate sub-micron particulates before the air reaches the terminal supply. HEPA Integration: Our units are designed to work in tandem with terminal HEPA modules for Grade A and B environments.
Technical Specifications & Features
| Feature | Metrolabs AHU Standard | Impact on Operations |
| Casing Leakage | Class L1/L2 (EN 1886) | Prevents contamination from unconditioned air. |
| Blower Technology | High-efficiency EC Plug Fans | Reduces energy consumption and vibration. |
| Cooling/Heating Coils | Hydrophilic coated copper/aluminum | Resists moisture buildup and fungal colonization. |
| Control System | PLC-based with BMS integration | Allows for real-time monitoring of air quality and pressure. |
Integration with Cleanroom Infrastructure
The AHU does not work in isolation. Metrolabs ensures that your air handling system is perfectly synchronized with your Wall & Partition Systems and Air-tight Doors to maintain the “Clean Shell.”
Airlock Pressure Logic: Our AHUs respond dynamically to door openings to prevent pressure collapse.
VHP Compatibility: Materials are selected to withstand the corrosive effects of Vaporized Hydrogen Peroxide during room-wide sterilization cycles.
The Metrolabs Advantage
We provide a custom-built air management strategy for every project. From the initial load calculation to final validation and testing, our engineering team ensures that your AHU delivers consistent, high-accuracy performance.
Technical Insight: For energy-intensive facilities, we offer Heat Recovery Wheels integrated into the AHU. This allows you to recycle thermal energy from exhaust air to pre-condition incoming fresh air, significantly reducing operational costs without compromising sterility.