Airlock VHP Sterilization
An airlock / buffer room with an integrated vaporized hydrogen peroxide generator that bio-decontaminates the outer surfaces of materials before they enter a Grade A/B critical zone.
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Overview
The Fenggu Airlock VHP Sterilization system integrates a vaporized hydrogen peroxide (VHP) generator into an airlock / pass-through buffer room, delivering H2O2 gas into the room to bio-decontaminate the outer surfaces of materials before they move from an unclassified or low-grade area into a Grade A/B critical zone. It is used for the clean, dry items that must be transferred in aseptic production — outer packaging of packaging materials, instruments, raw- and auxiliary-material packaging, accessories and environmental-monitoring equipment. The cycle runs automatically in four stages — temperature / humidity pre-conditioning, conditioning, sterilization and aeration — reducing residual VHP to ≤ 1 ppm before the room is opened.
Key Features
- VHP generator integrated into an airlock / buffer room; also functions as a normal pass-through room
- Four automatic stages: pre-conditioning (≥ 28 °C, < 30% RH) / conditioning / sterilization / aeration
- Full SUS304 construction with bio-airtight interlocked doors — both sides cannot open simultaneously
- Inlet and outlet air pass through H14 HEPA filters to protect the materials
- Real-time monitoring of temperature, humidity, pressure and H2O2 concentration
- Siemens PLC control with real-time printing; BMS control when not in a sterilization cycle
- 6-log sporicidal decontamination; residual VHP reduced to ≤ 1 ppm before opening
Technical Specifications
| Process temperature | 25–35 °C | Process humidity | 40–60% RH |
|---|---|---|---|
| VHP concentration | 300–400 ppm | Residual VHP after aeration | ≤ 1 ppm |
| Bio-decontamination cycle | 30 min | Aeration time | ≤ 1 h |
| Sporicidal efficacy | ≥6-log reduction (subject to validation) | Noise | ≤ 75 dB |
| Exterior material | SUS304 | Internal piping | SUS316L |
| Air filtration | H14 HEPA | Control | Siemens PLC, BMS-linked |
Applications
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Tell us the buffer-room size, the connected cleanroom classifications and material types, and our engineers will recommend a suitable airlock VHP configuration.
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