304 Stainless Steel Convex Door Pass Box | 760x660x690mm Cleanroom Equipment | FDA/ISO Certified | Pharma & Lab Use
ISO 14644-1 Class 4 particle control
ANSI/ESD S20.20-2021 electrostatic protection
USP <1072> cleanability compliance
Structural Validation:
2.5mm reinforced frame withstands 250Pa pressure differential
Deployed in mRNA vaccine isolators, semiconductor lithography bays, and BSL-3 containment suites.
Parameter Name | parameter |
Material | 304 sanded stainless steel |
Window Design | Double doors with double-layer hollow tempered glass observation windows |
Interlock System | Mechanical interlock to prevent simultaneous door opening |
Lighting | Embedded UV sterilization lamp |
Door Handle | Stainless steel for durability |
External Dimensions | W760 × D670 × H690 (mm) |
Internal Dimensions | W600 × D600 × H600 (mm) |
Certifications | ISO 14644-1 |




Key Features
1. 304 Sanded Stainless Steel Construction: Durable and corrosion-resistant, ensuring cleanroom compatibility.
2. Double Door Design: Features observation windows for enhanced visibility and functionality.
3. Mechanical Interlock System: Prevents simultaneous opening of both doors, eliminating cross-contamination risks.
4. UV Sterilization: Embedded UV lamp for maintaining a sterile environment.
5. Durable Door Handle: Made of stainless steel for long-lasting reliability.
6. Optimized Dimensions: Compact yet spacious design for efficient use in cleanroom environments.
7. Safety & Visibility: Observation windows ensure clear visibility and enhanced safety during operations.
Application Scenarios
Material transfer in pharmaceutical cleanrooms.
Sterile sample handling in biomedical laboratories.
Contamination-sensitive component transfer in electronics manufacturing.



Q1: How does this FDA/ISO-Certified 304 Stainless Steel Convex Door Pass Box ensure compliance with pharmaceutical and lab standards while preventing cross-contamination?
This pass box is rigorously certified to meet FDA regulations and ISO 14644-1 Class 5 cleanliness standards, ensuring sterile material transfer in regulated environments like pharmaceutical labs or GMP-compliant facilities. The 304 stainless steel construction offers a smooth, non-porous surface that resists particle buildup and simplifies sanitization, critical for maintaining FDA-approved hygiene. The convex door design minimizes recessed areas where dust or contaminants could accumulate, while a mechanical interlock system ensures only one door opens at a time, creating an airtight barrier to prevent cross-contamination. Equipped with HEPA H14 filters (≥99.995% efficiency at 0.3μm), it maintains a particle-free environment, making it ideal for transferring sensitive materials like APIs, lab samples, or sterile equipment.
Q2: Can the 304 stainless steel construction and convex door design of this pass box withstand frequent sanitization and chemical exposure in pharmaceutical or lab settings?
Yes. The 304 stainless steel build provides superior corrosion resistance, making it suitable for environments where daily cleaning with aggressive disinfectants or exposure to mild chemicals is standard. Its smooth, durable surface resists scratches and particle adhesion, reducing maintenance efforts and contamination risks. The convex door design enhances cleanability by eliminating hard-to-reach corners, ensuring thorough sanitization. The pass box is engineered with welded seams and airtight seals to maintain structural integrity even in high-humidity or chemically intensive lab conditions. Routine maintenance, such as filter replacements (HEPA filters every 12–18 months) and gasket inspections, ensures long-term reliability and compliance with stringent industry standards.
Q3: How do the 760x660x690mm dimensions and convex door design of this pass box optimize space and efficiency in pharmaceutical or lab workflows?
The 760x660x690mm size balances interior capacity with a compact footprint, making it suitable for labs or cleanrooms where space is limited. The convex door design not only enhances ergonomics by providing a comfortable grip but also allows for easy access to the spacious interior, simplifying the transfer of large equipment, bulk materials, or delicate labware. The mechanical interlock system streamlines operations by ensuring safe, sequential door movements, reducing downtime in high-traffic environments. The pass box’s robust stainless steel construction supports heavy loads and frequent use, while its efficient airflow system (with optional HEPA filtration) maintains cleanroom compliance without compromising workflow speed. This combination of space efficiency and functional design is particularly beneficial in pharmaceutical research or lab settings where precision and productivity are critical.