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\n Vaporized Hydrogen Peroxide \u00b7 Design \u00b7 Cycle Development \u00b7 Validation Support<\/span>\n

VHP bio-decontamination, engineered around your process<\/em> \u2014 not a catalogue.<\/h1>\n

From pass boxes to whole HVAC-connected cleanroom suites, we help pharmaceutical and biotech teams choose, size and validate the right VHP approach, then build the equipment to match.<\/p>\n

Request a Free Application Review<\/a>Read the VHP Guide<\/a><\/div>\n <\/div>\n
\"FengguFG-VHP-GL \u00b7 Recirculating VHP Generator<\/span><\/div>\n<\/div>\n
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Phase 1<\/span>Dehumidify<\/b>Lower RH so vapour stays in the gas phase<\/span><\/div>\n
Phase 2<\/span>Condition<\/b>Build H\u2082O\u2082 concentration to target<\/span><\/div>\n
Phase 3<\/span>Decontaminate<\/b>Hold concentration for the validated dwell<\/span><\/div>\n
Phase 4<\/span>Aerate<\/b>Catalytically reduce residue to a safe level<\/span><\/div>\n<\/div><\/div>\n<\/section>\n\n
\n Where are you in your project?<\/span>\n

Start from your question<\/h2>\n
\n 01 \/ LEARN<\/span>

Understand VHP<\/h3>

How the cycle works, what a 6-log reduction actually means, and how VHP compares with aerosolized peroxide and other methods.<\/p>Open the knowledge library \u2192<\/span><\/a>\n 02 \/ CHOOSE<\/span>

Find the right setup<\/h3>

Pass box, room, isolator or HVAC-integrated system \u2014 compare approaches by volume, cycle time and validation effort.<\/p>Browse applications \u2192<\/span><\/a>\n 03 \/ ASK<\/span>

Talk to an engineer<\/h3>

Send your room size, materials and target cycle. We reply with a recommended configuration and what validation will involve.<\/p>Request a review \u2192<\/span><\/a>\n <\/div>\n<\/div><\/section>\n\n

\n Applications<\/span>\n

VHP solutions by application<\/h2>\n

Each guide explains the decontamination challenge, the typical configuration and the validation points to plan for.<\/p>\n

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\"VHP<\/div>

Material transfer & pass boxes<\/h3>

Decontaminate components entering Grade A\/B zones without breaking pressure cascades.<\/p><\/div><\/a>\n

\"Mobile<\/div>

Cleanroom & room decontamination<\/h3>

Mobile or fixed generators for shutdowns, changeovers and contamination events.<\/p><\/div><\/a>\n

\"Aseptic<\/div>

Isolators & RABS<\/h3>

Integrated VHP cycles for aseptic filling and sterility-test isolators.<\/p><\/div><\/a>\n

\"HVAC-integrated<\/div>

HVAC-integrated suites<\/h3>

Use the existing air handling system to distribute VHP through multiple rooms.<\/p><\/div><\/a>\n

\"VHP<\/div>

Biosafety labs & filter housings<\/h3>

Decontaminate BSL-3 spaces, ductwork and BIBO housings before maintenance.<\/p><\/div><\/a>\n

\"Cell<\/div>

Cell & gene therapy<\/h3>

Low-residue cycles for cell processing isolators and sensitive materials.<\/p><\/div><\/a>\n <\/div>\n<\/div><\/section>\n\n

\n VHP Knowledge Library<\/span>\n

Engineering guides, written for QA and process teams<\/h2>\n
Cycle design<\/span>
Cleaning Before VHP: Why Bio-Decontamination Does Not Replace It<\/b>

Why VHP needs clean surfaces, which residues interfere with it, and a practical cleaning-then-VHP sequence for rooms and isolators.<\/p><\/div><\/a>Troubleshooting<\/span>

Troubleshooting a Failed VHP Cycle: Symptoms, Causes and Fixes<\/b>

From symptom to cause: dehumidification, concentration, condensation, BI growth, long aeration and leaks \u2014 and the order to investigate them.<\/p><\/div><\/a>Comparisons<\/span>

VHP vs Formaldehyde vs Chlorine Dioxide: Choosing a Room Fumigant<\/b>

How formaldehyde, chlorine dioxide gas and VHP compare on efficacy conditions, cycle time, residues, materials and safety \u2014 and when each is used.<\/p><\/div><\/a>Isolators<\/span>

How to Write an Isolator URS: Sections, Example Requirements and Common Gaps<\/b>

A section-by-section structure for an isolator URS, with examples of testable requirements and the gaps that cause problems later.<\/p><\/div><\/a>Isolators<\/span>

Environmental Monitoring in Isolators: Particles, Viables and the VHP Problem<\/b>

What to monitor in a Grade A isolator, where to place samplers, and how residual hydrogen peroxide can affect viable monitoring.<\/p><\/div><\/a>Isolators<\/span>

Isolator Airflow Visualisation: How to Plan and Judge a Smoke Study<\/b>

How to plan, film and judge an airflow visualisation (smoke) study in an isolator, including interventions through gloves.<\/p><\/div><\/a><\/div>\n

All guides \u2192<\/a><\/p>\n<\/div><\/section>\n\n

\n Engineering tools<\/span>\n

Free calculators for VHP and isolator work<\/h2>\n
\n ISOLATORS \u00b7 CALCULATOR<\/span>

Isolator leak rate calculator<\/h3>

Pressure decay reading \u2192 hourly leak rate and ISO 10648-2 class, with temperature correction.<\/p>Open the tool \u2192<\/span><\/a>\n SAFETY \u00b7 CALCULATOR<\/span>

VHP aeration time calculator<\/h3>

Volume, starting ppm and airflow \u2192 ideal time to reach 1 ppm, with a log-scale curve.<\/p>Open the tool \u2192<\/span><\/a>\n EQUIPMENT \u00b7 SELECTOR<\/span>

VHP equipment selector<\/h3>

What you need to treat and how big it is \u2192 the type of VHP equipment that fits.<\/p>Open the tool \u2192<\/span><\/a>\n <\/div>\n<\/div><\/section>\n\n

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\n Engineering Services<\/span>\n

Support beyond the equipment<\/h2>\n

Buying a generator is the easy part. Getting a repeatable, documented cycle is where most projects need help.<\/p>\n

Request a Free Application Review<\/a><\/p>\n <\/div>\n