Double Layers Dynamic Passbox for Efficient Cleanroom Transfer Window

Laminar Flow Dynamic Passbox 

Key Features & Functions

1.  Unidirectional Laminar Airflow

• HEPA Filtration (99.999% @ 0.3μm) – Ensures sterile air circulation.
• Vertical Airflow – Adaptable to different workspace layouts.

2. Interlocking System

• Dual-Door Interlock – Prevents both doors from opening simultaneously, maintaining pressure differentials.
• Electronic Interlocking – Ensures secure transfer.

3. Material & Design Options

• Stainless Steel (304/316) Construction – Corrosion-resistant & easy to clean.
• Transparent Viewing Window (double-layer tempered glass) – Allows visual inspection without opening.
• UV Sterilization  – Enhances disinfection for high-risk environments.
• PAO testing port - Verify the installation integrity of the high-efficiency filter expediently.
• Differential pressure gauge - Monitor the status of HEPA filter.

4. User-Friendly Controls

• Touchscreen Operation – Simple interface for setting running time & airflow.
• Self-purification time and sterilization time can be flexibly set.
• Alarm –

                      *Alerts for emergency stop.                     

                      *Prompt tone within 5 minutes after opening the door to remind the user to close the door.

5. Customizable Configurations

• Static vs. Dynamic Models – Static for basic transfer, dynamic for continuous airflow.
• Size Variations – Compact (for small tools) or large (for bulky materials).
• Tray or shelf inside – Transfer small objects with big quantity.

6. Working Principle

• Material Placement – Items are placed inside the passbox via the exterior door.
• Air Purification Cycle  

                     *HEPA-filtered laminar airflowremoves airborne particles.

                     *UV sterilization (if equipped)further disinfects surfaces.

• Internal Door Unlocks – After purification, the inner door opens for retrieval in the clean area.
• Pressure Integrity – The interlock system ensures no air exchange between zones.

7. Key Applications

• Pharmaceutical/Biotech: A basic equipment as transfer windows to pass thru the vials, tools, or components between different cleanrooms.
• Electronics Manufacturing: Dust proof pass box for safe movement of sensitive parts in ESD-controlled cleanroom. 
• Hospital Sterile Units: Transporting surgical instruments or medical equipment without breaching aseptic conditions.