Cart Pass-Through Chambers

Heavy-Duty Cleanroom Pass-Throughs for Bulk Material Transfer

CleanAir Solutions’ Cart Pass-Through Chambers are engineered for cleanrooms that require safe, high-integrity transfer of carts, bins, and heavy equipment between classified environments. Built for ISO Class 6–8 applications, these floor-mounted pass-throughs feature fully welded 304 stainless steel chambers, UL-rated leak-proof doors, and interlock systems to minimize contamination and protect your cleanroom integrity.

Designed to support pharmaceutical, biotech, and high-volume sterile processing, our CleanSeam™ pass-through line combines long-term durability with fast, hassle-free installation and optional status indicator upgrades for smarter operation.

Key Pass-Through Chamber Features

ISO-Certified Design

Rated for ISO Class 6, 7, and 8 environments; ideal pass-through chambers for sterile manufacturing, pharmacy compounding, and life science applications.

Fully Welded CleanSeam™ Interior

Continuous seam welds eliminate crevices where particles and microbes can collect, ensuring the cleanroom chamber is easy to clean and sterilize.

304 Stainless Steel Construction

Corrosion-resistant finish withstands alcohol-based disinfectants, bleach-based cleaners, and regular sterilization cycles.

Floor-Mounted Design with Ramps

Includes (2) removable ramps for seamless cart entry and exit. Designed to handle heavy equipment and wheeled materials without disrupting cleanroom containment.

Automatic Mechanical Interlock

Prevents both cleanroom pass-through chamber doors from being opened at the same time to reduce cross-contamination. Optional Smart upgrade includes green/red visual indicators to notify users when it's safe to open the opposite door.

Leak-Rated Stainless Steel Doors

Access doors feature UL-rated gasketing and heavy-duty lift latches for a secure seal and extended product life.

Gasket System

Santoprene® “E”-shape non-outgassing gasket maintains its shape after compression and won’t warp, crack, or degrade. Mechanically attached to prevent adhesive failure.

Anti-Static Windows

Cleanroom doors include static-dissipative PVC windows, which prevent particle attraction and improve visibility during material transfer.


Specification Table
Pass-Through Chamber Feature Specification
Inside Dimensions 36"W × 36"H × 36"D
Opening Dimensions 34"W × 33"H
Material 304 Stainless Steel
Weld Style Continuous Seam Welds
Interlock Automatic Mechanical (Standard)
Smart Features Optional: Visual LED status lights
Mounting Position Floor-Mounted
Gasket Material Santoprene® (non-outgassing)
Window Material Static-Dissipative PVC
Electropolished Option Available
HEPA/ULPA Filtration Not included
Concealed Interlock No (optional Smart upgrade available)

Ideal Cleanroom Pass-Through Use Cases

  • Bulk material transfers in sterile cleanrooms

    Compounding pharmacies (USP 797/800)

  • Biotech and gene therapy labs

  • High-throughput pharmaceutical production

  • Food safety and medical device clean zones


What’s Included

Each of CleanAir Solution’s pass-through chambers includes:

  • One (1) automatic mechanical interlock

  • Two (2) Removable ramps

  • Mounting brackets with cleanroom-side offset

  • User manual and installation guide


Upgrade Options

  • Smart CleanMount integration with red/green door status lights

  • Electropolished interior

  • Extended depth or custom sizing

  • Autoclavable doors and reversible interior racks


Ready to move materials safely between clean zones?

Contact Cleanroom Specialists to spec your Cart Pass-Through Chamber today. Request a quote or contact sales@cleanroomspecialists.com