GUARDiON H2T Hydrogen Peroxide Dry-Mist Sterilizer

Overview

The GUARDiON H2T is a CE-certified, mobile dry-mist hydrogen peroxide (H₂O₂) sterilization system engineered for terminal decontamination of critical environments. It operates on the principle of controlled vaporized hydrogen peroxide (VHP®-equivalent) generation via dual-nozzle dynamic dry-mist dispersion—distinct from condensing fogging or liquid spraying—ensuring uniform distribution of sub-1 µm aerosol particles without surface wetting or residue formation. Unlike conventional vapor-phase systems requiring strict environmental preconditioning (e.g., temperature ≥20 °C, RH ≤60%), the H2T achieves rapid bio-decontamination across ambient conditions (15–30 °C, 30–70% RH), eliminating pre-cycle climate stabilization and reducing total cycle time by up to 40%. Its core architecture integrates a 5 L sterile-grade H₂O₂ reservoir, precision thermal vaporization at 25 °C, and real-time environmental feedback control—enabling validated, repeatable 6-log microbial reduction in spaces up to 446 m³.

Key Features

• Patented Dual-Dispersion Head Platform (DDHP): Two independently actuated nozzles mounted on adjustable tripod support enable 360° directional mist projection, optimizing coverage in complex geometries—including under benches, behind biosafety cabinets, and within HVAC duct interfaces.
• Ultra-Low Concentration Protocol: Utilizes only 7% w/w aqueous H₂O₂—significantly below OSHA PEL (1.4 ppm TWA)—minimizing material compatibility risks while maintaining sporicidal efficacy through kinetic particle dispersion (<1 µm median aerodynamic diameter).
• Robust Stainless Steel Construction: Main and auxiliary units fabricated from electropolished AISI 304 stainless steel (IP54-rated enclosures), ensuring corrosion resistance, cleanability, and compliance with ISO 14644-1 Class 5–8 cleanroom maintenance protocols.
• Integrated Human-Machine Interface: 7-inch capacitive touchscreen LCD with multilingual GUI, real-time cycle graphing (H₂O₂ ppm, RH%, temperature), built-in thermal printer for ASME BPE-compliant cycle reports, and Ethernet/Wi-Fi connectivity for remote PLC supervision via standard Modbus TCP.
• Plug-and-Play Mobility: Dual-unit design (main generator + auxiliary air handling module) with retractable casters, two 8 m reinforced power cables (110/220 V AC, 50/60 Hz), and modular cabling supports rapid deployment across laboratories, isolators, GMP manufacturing suites, and BSL-3 containment zones.

Sample Compatibility & Compliance

The GUARDiON H2T has been validated per ISO 14937 and EN 17125 for compatibility with common laboratory and pharmaceutical infrastructure materials—including 316L stainless steel, epoxy-coated surfaces, polycarbonate viewports, silicone gaskets, PVC flooring, urethane insulation, and cotton lab textiles—without inducing dimensional change, discoloration, or accelerated aging. All sterilization cycles generate full audit trails compliant with FDA 21 CFR Part 11 (electronic signatures, operator ID, timestamped event logs) and support GLP/GMP documentation requirements. System firmware includes preloaded cycle templates aligned with USP , ISO 14644-3 Annex C, and EC Decision 2009/814/EC for healthcare-associated pathogen decontamination (including SARS-CoV-2, MERS-CoV, Ebola Zaire, and avian influenza A/H5N1).

Software & Data Management

Embedded GUARDiON Control Suite v4.2 provides role-based access control (administrator/operator), encrypted data storage (AES-256), and automated report generation in PDF/XML formats. Cycle parameters—including H₂O₂ concentration profile, dwell time, ventilation purge duration, and environmental setpoints—are programmable and recallable. Integration with enterprise LIMS or MES platforms is supported via OPC UA and RESTful API endpoints. All cycle data are retained for ≥36 months on internal industrial-grade SSD; external backup is enabled via USB 3.0 or network share. Audit trail integrity meets ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• Terminal sterilization of ISO Class 5–8 cleanrooms and laminar flow hoods prior to media fill simulations (USP )
• Decontamination of isolators, RABS, and closed transfer systems in aseptic processing facilities
• Rapid response disinfection of BSL-2/3 laboratories following high-consequence pathogen handling (e.g., influenza A subtypes, coronaviruses)
• Pre-occupancy treatment of animal housing facilities (AAALAC-accredited vivaria) to eliminate endospores and mycobacteria
• Recovery of contaminated production suites after microbiological excursions—validated per EU GMP Annex 1 (2022) Section 8.42

FAQ

What is the maximum room volume the GUARDiON H2T can treat in a single cycle?
The system is validated for uniform H₂O₂ distribution and ≥6-log reduction in enclosed volumes up to 446 m³ when configured with auxiliary airflow modulation and extended mist dispersion time.
Does the H2T require pre-conditioning of ambient temperature or humidity?
No. Unlike legacy VHP systems, the H2T dynamically adjusts vaporization kinetics and air exchange rates to maintain efficacy across 15–30 °C and 30–70% RH—eliminating dedicated HVAC preconditioning steps.
How long is the typical aeration period post-cycle?
Ventilation time ranges from 10–45 minutes depending on room volume, air exchange rate, and target residual H₂O₂ level (<1 ppm); integrated catalytic decomposer modules reduce this further.
Is third-party validation support available for IQ/OQ/PQ protocols?
Yes. GUARDiON provides vendor-qualified protocol templates, reference test strains (Geobacillus stearothermophilus ATCC 7953), and on-site commissioning assistance aligned with ISO 13408-1 and PDA TR#1.
Can the system be integrated into existing building management systems (BMS)?
Yes. Native Modbus TCP and BACnet/IP gateways enable bidirectional communication with Siemens Desigo, Honeywell Enterprise Buildings Integrator, and Schneider EcoStruxure platforms.