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-biodecontaminated to a specified 6-log (99.9999%) reduction, subject to cycle validation, before the receiving-side door can be opened. 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
- Desiccant-wheel dehumidifier dries and warms the chamber before the biodecontamination cycle
- 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 | Biodecontamination efficacy | ≥6-log reduction (subject to validation) |
|---|---|---|---|
| Process temperature | 25–35 °C | Process humidity | 40–60% RH |
| VHP concentration | 300–500 ppm | Post-cycle residual | ≤ 1 ppm |
| Full cycle time | To be confirmed | Aeration time | To be confirmed |
| Chamber (exterior) material | SUS304 | Internal piping | SUS316L |
| Air filtration | H14 HEPA | Noise level | ≤ 75 dB |
Applications
Request a datasheet or quotation
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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