Cleanroom HEPA Filters
Cleanroom HEPA Filters: The Final Barrier for Absolute Sterility
In a high-stakes controlled environment, the air you breathe and work in is only as sterile as its final point of filtration. Metrolabs provides high-accuracy HEPA (High-Efficiency Particulate Air) Filters, engineered to capture microscopic contaminants that standard filtration systems miss.
Our filters are the definitive structural component for ensuring your research, pharmaceutical, or healthcare facility maintains its required ISO classification and biological safety levels.
Engineering the “Zero-Contamination” Zone
A Metrolabs HEPA filter is designed to achieve a minimum efficiency of 99.97% to 99.99% for particles as small as 0.3 microns. For more demanding environments, we offer ULPA (Ultra-Low Penetration Air) filters for even higher-accuracy filtration.
Advanced Borosilicate Microfiber Media
Our filter media is composed of densely pleated sub-micron glass fibers. This intricate "web" captures particles through four distinct mechanisms: Sieving: Trapping larger particles between fibers. Interception: Capturing medium particles that follow the airstream but touch a fiber. Inertial Impaction: Forcing heavy particles to collide with fibers due to their momentum. Diffusion: Using Brownian motion to capture the smallest, most erratic particles.
Aluminum & Stainless Steel Frames
Every filter is housed in a rigid, non-corrosive frame—typically anodized aluminum or SS 304—ensuring that the unit does not warp under the high static pressure of a Cleanroom AHU.
Specialized Terminal Housing
To ensure long-term performance, the filter is only as good as its seal. We provide specialized housings that integrate into our Modular Cleanroom Panels: Fluid/Gel Seal: A specialized channel filled with medical-grade silicone gel that ensures a 100% leak-proof interface between the filter and the frame. Dry Gasket Seal: High-compression EPDM gaskets for standard sterile applications.
Technical Performance Standards
| Feature | Metrolabs HEPA Specification | Impact on Operations |
| Efficiency Rating | H13 / H14 (EN 1822) | Guarantees air purity for Grade A/B zones. |
| Frame Depth | 50mm, 69mm, 150mm, 292mm | Tailored for airflow volume and space constraints. |
| Initial Pressure Drop | Low resistance design | Reduces energy consumption of the AHU. |
| Protection Grille | Powder-coated expanded metal | Prevents accidental damage to the delicate media. |
Strategic Integration with Infrastructure
Metrolabs ensures that your HEPA filtration strategy is a cohesive part of your facility design:
Terminal HEPA Modules: Installed at the ceiling level to provide laminar (unidirectional) airflow directly over sensitive work zones.
Safe-Change (Bag-in/Bag-out): For BSL-3 and BSL-4 microbiology labs, we provide housings that allow filters to be replaced without exposing personnel or the environment to hazardous pathogens.
Scan Testing Ports: Every unit includes integrated ports for aerosol challenges (PAO testing), allowing your team to validate filter integrity without dismantling the ceiling.
The Metrolabs Advantage
We don’t just supply filters; we deliver a validated air-quality solution. Each Metrolabs HEPA filter is factory-tested and certified, ensuring it meets the rigorous demands of your specific industry—from pharmaceutical filling lines to infectious disease research.
Expert Insight: To maximize the life of your HEPA filters and ensure long-term performance, we recommend a tiered filtration approach starting with G4 and F9 pre-filters within your AHU. This prevents premature clogging and maintains stable pressure gradients across your facility.