In any pharmaceutical manufacturing facility it is essential to minimise man / material movement & avoid cross contamination between different classified areas to achieve desired classification & to maintain integrity of products & process.
The Passboxes are designed to allow material transfer without much personnel movement. It also ease controlling ingress of particulate contaminants into the cleanroom & between different classified areas.
Applications:
- Pharmaceutical Industries
- Food Processing Industry
- Semiconductor Industry
- Chemical Laboratories
- Electronics Industry
FAQs
A Dynamic Pass Box is a controlled-chamber transfer unit designed to move materials from one classified area to another (or from an unclassified to a classified space) while minimising personnel movement and avoiding cross-contamination. Your product page describes it as allowing material transfer without much personnel movement and reducing ingress of particulates into cleanrooms and between different classified areas.
Unlike a static/passive pass box (which typically has no active air-filtration or blower system), a dynamic pass box is equipped with its own airflow/filtration system – for example built-in HEPA (or equivalent) filters and air circulation – making it suitable for transfers between areas of differing cleanliness levels.
Key features typically include:
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Stainless steel construction (so materials can be cleaned easily)
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Two inter-locked doors (so only one opens at a time) preventing cross-flow of air/contaminants
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Built-in fan/blower plus filter (e.g. HEPA) to create a clean-air environment inside the chamber.
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Differential pressure gauge or monitoring system to check filter health or internal air balance.
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UV light or sterilisation option (depending on configuration) to further reduce microbial contamination.
Important operational points include:
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Ensure the interlock system is functioning so one door cannot open while the other is open (maintaining containment).
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Maintain correct air-flow and pressure differential inside the pass box chamber so the cleanliness classification is upheld.
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Regularly monitor the differential pressure gauge (if provided) across the filter to gauge filter performance and know when replacement is needed.
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Only one door should be open at a time; avoid opening both, since that would defeat the air-lock and increase contamination risk.
Regular maintenance is key to ensure performance:
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Replace pre-filters and main HEPA filters at recommended intervals (typically the HEPA replacement may be every 6-12 months depending on usage and environment).
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Clean the internal chamber surfaces and disinfect as required (e.g., weekly in high cleanliness areas).
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Inspect and calibrate the differential pressure gauge and ensure the blower/fan is functioning correctly and delivering required airflow.
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Verify door-interlock mechanism is working and no door is damaged or leaking air.
