Cleanroom Pass-through Windows
Cleanroom Pass-through Windows: Secure Material Transfer
In high-accuracy environments, the movement of personnel is the leading cause of contamination. Metrolabs provides specialized Cleanroom Pass-through Windows (also known as Pass Boxes), engineered to allow the seamless transfer of materials between different cleanliness classes without requiring staff to leave their stations.
Our pass-through systems act as a critical buffer, maintaining your facility’s pressure gradients and significantly reducing the risk of cross-contamination.
Engineered for Sterile Transfer
A Metrolabs pass-through is more than just a cabinet; it is a precision-engineered structural component designed to meet the same rigorous standards as our Wall & Partition Systems.
Mechanical or Electronic Interlocking
The core safety feature of our pass-through windows is the interlocking mechanism. This ensures that both doors cannot be opened simultaneously, preventing a direct path for air and contaminants to bypass your controlled environment. Airlock Integrity: Maintains the pressure differential between the "clean" and "dirty" zones. Visual Indicators: LED status lights (Red/Green) signal when the door on the opposite side is in use.
Durable & Chemically Resistant Materials
Main Body: Constructed from high-grade SS 304 or SS 316 for maximum chemical resistance and longevity. View Panels: Toughened, double-glazed safety glass allows for clear visibility of contents. Gaskets: Medical-grade silicone gaskets provide an airtight seal that withstands frequent disinfection.
Hygienic, Zero-Ledge Construction
Consistent with our "Zero-Ledge" philosophy, our pass-through units feature a smooth, internal finish. Radiused Internal Corners: Eliminates sharp angles where dust can accumulate, facilitating 100% sterilization. Flush-Mounted Design: The unit sits level with your Modular Cleanroom Panels, ensuring no protruding edges on either side of the wall.
Specialized Configurations
| Type | Function | Best For |
| Static Pass Box | Standard material transfer between rooms. | General lab supplies and samples. |
| Dynamic Pass Box | Includes integrated HEPA filtration and air showers. | Transferring materials into ultra-sterile (Grade A) zones. |
| UV Pass Box | Equipped with germicidal UV lamps. | Items requiring surface sterilization during transit. |
| Floor-Mounted Pass-Through | Large-scale units for trolleys and heavy equipment. | Pharmaceutical production and large-scale manufacturing. |
The Metrolabs Advantage
At Metrolabs, we focus on long-term performance. Our pass-through windows are custom-built to integrate perfectly with your existing workflow, ensuring that your infrastructure remains compliant with ISO and GMP standards.
Custom Sizing: We design units tailored to the specific dimensions of your equipment or samples.
Airtight Engineering: Every unit is tested for seal integrity to ensure it supports your facility’s HVAC performance.
Safety Integration: Optional emergency release buttons and specialized door handles for ease of use.
Technical Insight: For high-containment microbiology labs (BSL-3), we recommend our Dynamic Pass Boxes with H-14 HEPA filters to ensure that any air trapped within the box during transfer is fully decontaminated before the sterile-side door is released.