VHP Pass Box
A vaporized hydrogen peroxide (VHP) pass box that surface-decontaminates materials as they transfer between cleanroom zones, preventing microbial cross-contamination.
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Overview
The Fenggu VHP Pass Box combines interlocked, HEPA-filtered material transfer between cleanroom areas of differing classification with an in-chamber vaporized hydrogen peroxide (H2O2) decontamination cycle. Materials placed in the chamber are surface-decontaminated to a validated 6-log reduction before the receiving-side door can be opened, eliminating the biocontamination risk normally associated with manual material transfer. Mechanical or electronic door interlocks prevent both doors from being opened at the same time, maintaining the pressure and containment boundary between zones.
Key Features
- Full SUS304 construction; also functions as a standard pass box, durable and easy to clean
- Double interlocked, inflatable-sealed doors — both sides cannot be opened at the same time
- Inlet and outlet air both pass through H14 HEPA filters to protect the material
- Real-time monitoring of chamber temperature, humidity, pressure and H2O2 concentration
- Siemens PLC automatic control supporting unattended automatic operation
- Real-time printing and logging of process parameters for each cycle
Technical Parameters
| External dimensions | Configured to project requirements | Bio-decontamination efficacy | 6-log reduction |
|---|---|---|---|
| Process temperature | 25–35 °C | Process humidity | 40–60% RH |
| VHP concentration | 300–400 ppm | Post-cycle residual | ≤ 1 ppm |
| Bio-decontamination cycle | 30 min | Aeration time | ≤ 1 h |
| Chamber (exterior) material | SUS304 | Internal piping | SUS316L |
| Air filtration | H14 HEPA | Noise level | ≤ 75 dB |
Applications
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Tell us the material load, the connected cleanroom classifications and throughput, and our engineers will recommend a suitable VHP pass box configuration.
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