FR3402 Cleanroom Pass Box

Cleanroom Pass Box – Description

A Cleanroom Pass Box is a specialized enclosure installed between two cleanroom areas or between a cleanroom and a non-controlled area. Its primary function is to transfer materials without disturbing the cleanliness level of the controlled environment. This helps to minimize cross-contamination and reduce the amount of foot traffic in cleanrooms, which is a major source of particulate generation.

Pass boxes are commonly used in pharmaceutical, biotechnology, semiconductor, electronics, and food processing industries, where cleanliness and contamination control are critical.

Types of Pass Boxes

1. Static Pass Box

   • Used for transferring non-sensitive items between areas of the same cleanroom classification.

   • No airflow system included.

2. Dynamic Pass Box

   • Equipped with HEPA or ULPA filters and a fan to maintain a clean airflow inside the chamber during transfer.

   • Suitable for material transfer between areas of different cleanliness levels.

3. Ventilated or Laminar Flow Pass Box

   • Provides unidirectional airflow to maintain sterility and particle control.

   • Often used in sterile and aseptic environments.

Key Features

• Construction: Made from stainless steel (usually SS 304 or SS 316) for easy cleaning and corrosion resistance.

• Interlocking Doors: Prevent both doors from opening simultaneously, avoiding direct contamination paths.

• View Windows: Toughened glass or acrylic panels for visibility.

• Gasket Seals: Ensure airtight transfer to prevent leakage of contaminated air.

• UV Lamp or Fluorescent Light (optional): For sterilization and illumination.

• Electromagnetic Interlock System: Ensures safe operation and strict control over door usage.

Benefits

• Prevents contamination during material transfer.

• Reduces the need for personnel movement, lowering the risk of particle generation.

• Improves cleanroom efficiency and safety.

• Supports regulatory compliance with GMP, ISO, and other cleanroom standards.

Applications

• Pharmaceutical production

• Laboratories and R&D facilities

• Semiconductor fabrication

• Food and beverage packaging areas

• Hospitals and healthcare settings