HVAC-Integrated VHP System
A fixed, central vaporized hydrogen peroxide system that couples to the existing air-handling plant to distribute VHP through the cleanroom and its ductwork — decontaminating suites of over 1500 m³.
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Overview
The Fenggu HVAC-Integrated VHP System deeply integrates a hydrogen-peroxide sterilization unit with the existing air-conditioning plant. Using the HVAC air-circulation loop, it distributes vaporized hydrogen peroxide evenly through the target space and the ductwork itself, and the strong oxidising action of H2O2 destroys the cell membranes, proteins and nucleic acids of micro-organisms for broad-spectrum 6-log (99.999%) kill. After decontamination the residual peroxide decomposes into water and oxygen, leaving no toxic by-products. The unit connects directly to existing air-handling units without major modification, forming a closed loop through C-PVC piping.
Key Features
- Distributes VHP through the HVAC ductwork to bio-decontaminate whole rooms and the air system
- Flash-vaporizes 30–35% H2O2 into 3–5 μm gas particles that penetrate ductwork and HEPA filters
- Covers over 1500 m³ per cycle; large-area decontamination in 3–8 hours, 6-log spore kill from as little as 10 minutes
- Dry-process, low-corrosion method compatible with 400+ industrial materials
- 12-inch industrial touchscreen with real-time monitoring of time, temperature, humidity and H2O2 concentration; PLC closed-loop concentration and residual control
- Low-temperature process (4–80 °C), fully automatic, with FDA 21 CFR Part 11 audit-trail compliance
Technical Specifications
| Overall dimensions | 1200 × 600 × 2200 mm | Sporicidal efficacy | ≥6-log reduction (subject to validation) |
|---|---|---|---|
| Process temperature | 25–35 °C | Process humidity | 50–60% RH |
| Sterilization cycle | 150 min | Aeration time | ≤ 4 h |
| VHP concentration | 150–200 ppm | Residual VHP after aeration | ≤ 1 ppm |
| Exterior / piping material | SUS304 / SUS316L | Delivery piping | CPVC |
| Coverage | > 1500 m³ per cycle | Noise | ≤ 75 dB |
| Control | 12" touchscreen, PLC closed-loop | Compliance | FDA 21 CFR Part 11 |
Applications
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