Pharma Grade A Pass Box for Sterile Transfer | 304 Steel & 0.3μm Filtration
Integrated clean lighting illuminates the transfer chamber for precise material handling, while the system’s low noise design ensures minimal disruption to lab or production workflows. This combination of performance and user-centric engineering makes it ideal for applications where both productivity and environmental comfort are critical.
Parameter Name | parameter |
Material | 304 stainless steel |
Window Design | Double-layer tempered glass with silk-screened black edges |
Air Shower System | 4 adjustable stainless steel air nozzles |
Control System | Panel control with dual-door electronic interlock |
Fan System | 220V/50Hz air shower fan, nozzle outlet speed: 13–25 m/s |
Filtration | 2 pre-filters + 1 high-efficiency filter (99.99% efficiency) |
Lighting | Clean lighting LED lamp |
Door System | Flat door design with pressure handles for airtight sealing |
Internal Design | Rounded internal corners for easy cleaning and GMP compliance |
Manufacturing Process | Laser cutting, CNC bending, and laser welding for precision and aesthetics |
External Dimensions | W770 × D690 × H1500 (mm) |
Internal Dimensions | W600 × D600 × H600 (mm) |
Certifications | ISO 14644-1 |




Key Features
1. 304 Stainless Steel Construction: Durable and corrosion-resistant for cleanroom compatibility.
2. Aesthetic & Functional Design: Double-layer tempered glass with silk-screened black edges for visibility, sound insulation, and style.
3. High-Efficiency Air Shower: 4 adjustable stainless steel nozzles with 13–25 m/s wind speed for rapid decontamination.
4. Smart Control: Panel control with dual-door electronic interlock to prevent cross-contamination.
5. Advanced Filtration: 2 pre-filters + 1 HEPA filter ensure 99.99% efficiency.
6. Clean Lighting: Integrated LED lamp for illumination during transfers.
7. GMP Compliance: Rounded internal corners and flat door design for easy cleaning and high-end appearance.
8. Reinforced Interlock Mechanism: Made of reinforced steel for extended lifespan.
9. Safety & Visibility: Tempered glass observation window ensures clear visibility and enhanced safety.
10. Precision Manufacturing: Laser cutting, CNC bending, and laser welding for exact dimensions and aesthetic appeal.
Application Scenarios
Material transfer in pharmaceutical cleanrooms.
Sterile sample handling in biomedical laboratories.
Contamination-sensitive component transfer in electronics manufacturing.



Q1: How does this Pharma Grade A pass box ensure sterile material transfer while meeting rigorous pharmaceutical compliance standards?
This pass box is designed to meet Pharma Grade A requirements, ensuring aseptic transfer in critical environments. It features a HEPA filtration system with 0.3μm efficiency, removing ≥99.995% of particles, which is essential for maintaining ISO 14644-1 Class 5 cleanliness. The 304 stainless steel construction provides a smooth, non-porous surface that resists particle buildup and simplifies sanitization, aligning with GMP and FDA guidelines. An automatic interlocking door mechanism prevents cross-contamination by ensuring only one door opens at a time, while optional UV-C sterilization further eliminates microbial risks. These features work together to maintain sterile conditions during material transfer, making it ideal for pharmaceutical manufacturing, where compliance and purity are paramount.
Q2: Can the 304 stainless steel construction withstand frequent sanitization and chemical exposure in pharmaceutical settings?
Yes. The 304 stainless steel build offers excellent corrosion resistance and durability, making it suitable for environments where regular cleaning with aggressive disinfectants is required. Its smooth surface minimizes dust and debris accumulation, reducing the risk of contamination and simplifying maintenance. The pass box is engineered to withstand daily sanitization routines, with welded seams and airtight seals that preserve structural integrity over time. For highly corrosive applications, optional upgrades to 316L stainless steel are available. Routine maintenance, such as filter replacements (HEPA filters every 12–18 months) and gasket inspections, ensures long-term reliability in demanding pharmaceutical cleanrooms.
Q3: How does the 0.3μm filtration system in this pass box maintain consistent particle control during high-frequency transfers?
The 0.3μm HEPA filtration system is designed to deliver consistent, high-efficiency particle removal even during continuous use. It creates a laminar airflow pattern that sweeps contaminants away from the transfer zone, maintaining a Class 5 clean environment. The system’s design ensures uniform airflow distribution across the chamber, effectively capturing particles as small as 0.3μm, which is critical for pharmaceutical processes where even tiny contaminants can compromise product quality. Pressure sensors monitor filter performance, alerting operators when replacements are needed to prevent airflow obstruction. This combination of advanced filtration and intelligent design ensures reliable particle control in high-throughput pharmaceutical operations, minimizing downtime and ensuring compliance with strict cleanliness standards.