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Cleanroom Pass-Through Costs: Understanding Factors and Reducing Expenses

Cleanrooms are essential in industries that require a controlled environment for manufacturing or research purposes. In these facilities, materials and equipment must be transferred without contaminating the controlled environment. Cleanroom pass-throughs provide a solution by allowing materials to be passed through a barrier without affecting the cleanroom's controlled atmosphere. However, choosing and installing cleanroom pass-throughs can be expensive. In this article, we will explore the factors that impact cleanroom pass-through costs and how to make informed decisions when investing in these crucial components for your cleanroom.

Cleanroom Pass-Through Costs: Understanding Factors and Reducing Expenses

Table of Contents

  • Introduction

  • Cleanroom Pass-Throughs: Definition and Benefits

  • Factors that Affect Cleanroom Pass-Through Costs

Material and Construction

Size and Configuration

Features and Options

Installation and Maintenance

  • How to Reduce Cleanroom Pass-Through Costs

  • Conclusion

  • FAQs


Cleanrooms are essential for maintaining controlled environments, particularly in industries such as pharmaceuticals, biotech, and electronics manufacturing. These facilities require a specific level of cleanliness to prevent contamination from outside sources, which can impact the quality of products and research outcomes. To achieve this level of cleanliness, cleanrooms are built with specialized materials and equipped with air filtration systems and other equipment. However, transferring materials and equipment in and out of the cleanroom can be challenging without compromising the controlled environment. That's where cleanroom pass-throughs come in.

Cleanroom Pass-Throughs: Definition and Benefits

A cleanroom pass-through is a specialized component that allows materials to be transferred between a cleanroom and an adjacent environment without compromising the cleanliness of the controlled space. Pass-throughs come in various shapes, sizes, and configurations and can be built using different materials to suit the specific needs of the cleanroom.

Cleanroom pass-throughs offer several benefits, including:

Maintaining the controlled environment: Pass-throughs help maintain the cleanliness and sterility of the cleanroom by preventing outside contaminants from entering.

Increased efficiency: Pass-throughs provide a more efficient way to transfer materials and equipment in and out of the cleanroom, reducing the risk of cross-contamination and improving workflow.

Improved safety: Pass-throughs can be designed with features that improve safety, such as interlocks that prevent both doors from being open at the same time.

Flexibility: Pass-throughs can be customized to suit specific needs, such as material handling requirements and room layouts.

Factors that Affect Cleanroom Pass-Through Costs

Cleanroom pass-throughs can be expensive, but the cost varies depending on several factors. Here are the primary factors that impact cleanroom pass-through costs:

1. Material and Construction

The material used to construct the pass-through is one of the most significant factors affecting cost. Different materials offer varying levels of durability, cleanliness, and fire resistance. Stainless steel is the most common material used for pass-throughs due to its durability and cleanability, but it is also the most expensive. Other materials such as aluminum, polypropylene, and polycarbonate are more affordable, but may not be suitable for all cleanroom applications.

2. Size and Configuration

The size and configuration of the pass-through also impact costs. Pass-throughs can be built to fit various sizes, from small cabinets to large rooms, and come in different configurations, such as single-door or double-door. Larger and more complex configurations require more materials and labor, which drives up the cost.

3. Features and Options

Pass-throughs can be equipped with various features and options that impact cost, such as interlocks, air locks, and HE Filters and gaskets can also be added to pass-throughs to improve their performance and cleanliness. Filters are used to trap contaminants, while gaskets provide a tight seal between the pass-through and the cleanroom wall, preventing air leaks. These options can significantly improve the functionality of the pass-through but also add to the cost.

4. Installation and Maintenance

Installation and maintenance costs should also be considered when investing in a pass-through. Pass-throughs are typically installed by a professional technician, and the cost varies depending on the size and complexity of the installation. Additionally, regular maintenance is required to ensure the pass-through continues to function correctly and prevent contamination. The cost of maintenance will depend on the type of pass-through and its specific requirements.

How to Reduce Cleanroom Pass-Through Costs

While cleanroom pass-throughs can be expensive, there are ways to reduce costs without compromising on quality. Here are some tips to help you reduce cleanroom pass-through costs:

Choose the right material: Consider the specific needs of your cleanroom when choosing the material for your pass-through. While stainless steel is the most durable and cleanable option, other materials may be suitable for less demanding applications.

Optimize the size and configuration: Carefully consider the size and configuration of your pass-through to ensure it meets your requirements without being unnecessarily large or complex.

Minimize features and options: While features and options can enhance the functionality of the pass-through, they also add to the cost. Consider which options are essential for your application and avoid adding unnecessary features.

Plan for installation and maintenance: Proper installation and regular maintenance are critical for the long-term functionality of your pass-through. Plan for these costs upfront to avoid unexpected expenses.


Cleanroom pass-throughs are an essential component of any cleanroom, allowing for efficient and contamination-free transfer of materials and equipment. However, pass-through costs can vary depending on several factors, including material, size, configuration, features, and installation and maintenance requirements. By considering these factors and implementing cost-saving measures, you can make informed decisions when investing in cleanroom pass-throughs.


Can I install a pass-through myself, or should I hire a professional?

Pass-through installation should be done by a professional technician to ensure proper functionality and prevent contamination.

Are pass-throughs available in custom sizes and configurations?

Yes, pass-throughs can be customized to fit specific size and configuration requirements.

Can pass-throughs be used in non-cleanroom applications?

Yes, pass-throughs can be used in any application where materials need to be transferred between controlled environments.

What type of maintenance is required for pass-throughs?

Pass-throughs should be regularly cleaned and inspected for any damage or wear. Filters and gaskets should be replaced as necessary.

What is the typical lifespan of a pass-through?

The lifespan of a pass-through depends on several factors, including material, usage, and maintenance. With proper care, a pass-through can last for many years.

Kwang Purification is proud to offer examples of a variety of our cleanroom Pass Box below.  Static Pass BoxDynamic Pass BoxStainless Steel Pass BoxElectric Interlock Pass Box.

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