Cleanroom Pass Box

A cleanroom pass box is one of the essential components in the design and operation of controlled environments. It is used to transfer materials, tools, or equipment between two areas with different cleanliness levels and plays a crucial role in preventing cross-contamination and maintaining environmental cleanliness.

C1 TECH, with advanced engineering and modern technology, has developed a new generation of intelligent pass boxes that provide high precision, safety, and reliability. These systems are equipped with advanced control and monitoring features that allow real-time supervision of both operational status and environmental conditions.

Features and Functions

  • Automatic control system: Manages the interlock mechanism, ultraviolet sterilization lamp, and internal lighting.

  • Material transfer direction display: Shows and manages the direction of material flow to ensure proper transfer sequence.

  • Environmental monitoring: Displays filter clogging percentage, internal temperature, humidity, air quality, and optionally airflow rate.

  • Emergency stop button: Provides immediate system shutdown in emergency situations.

  • Adjustable timing system: Allows configuration of waiting and sterilization periods through the main control unit.

  • Integration with central cleanroom management system: Enables connection to the main UCMS for simultaneous control and monitoring of multiple pass boxes.

Technical Specifications

  • Reliable, low-voltage interlock system prevents both doors from opening at the same time and requires no maintenance.

  • External surfaces are made of AISI 304 stainless steel, and internal surfaces are made of AISI 316 stainless steel. Painted steel can be used for the outer body upon request.

  • Green and red signal lights prevent incorrect operation.

  • Smooth, flush-mounted surfaces prevent dust accumulation.

  • Tempered safety glass doors are easy to clean, hygienic, and prevent ultraviolet radiation leakage.

  • Optionally available as a full console type (from floor to ceiling) to completely eliminate dust accumulation in surrounding areas.

Surface and Equipment Options

  • Available in painted steel, AISI 304, or AISI 316 stainless steel, according to project requirements.

  • Optional HEPA filters on supply air, exhaust air, or both.

  • Optional high-efficiency, low-noise electronically controlled fan.

  • Optional ultraviolet lamp (254 nm) for internal sterilization.

  • One-way or two-way sterilization with adjustable time through the control system.

  • Optional inflatable air seal and vaporized hydrogen peroxide (VHP) sterilization system for gas-tight operation.

Types of C1 TECH Pass Boxes

Passive Type

A simple and cost-effective design without a fan or independent filtration system, suitable for transferring materials between areas with a small difference in cleanliness.
Applications: Medium-level clean areas (ISO 7–8).

Active Type

Equipped with fan and HEPA filtration to create positive pressure and clean airflow inside the chamber.
Applications: Pharmaceutical, medical, biotechnology, and electronics industries.

VHP Type

Equipped with a vaporized hydrogen peroxide sterilization system for complete disinfection of the chamber and materials.
Applications: Biological laboratories, vaccine production, sterile pharmaceutical manufacturing, and sensitive research facilities.

Applications

C1 TECH pass boxes are designed for all types of clean and controlled environments — both to prevent contaminants from entering clean zones and to stop hazardous substances from escaping biosafety or nuclear laboratories.

Fields of use:

  • Pharmaceutical and medical device production

  • Radiopharmaceutical and nuclear facilities

  • Biotechnology and life science industries

  • Electronics and microfabrication

  • Research and development centers