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Air Shower Dimensions: Designing for Cleanroom Efficiency and Contamination Control

  • 2023-12-05
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An air shower is a specialized enclosure equipped with high-velocity, HEPA-filtered air jets. Its purpose is to remove contaminants from personnel or objects before they enter cleanroom environments. By directing the airflow over individuals or objects, air showers effectively remove particles, dust, and other contaminants, minimizing the risk of contamination within cleanrooms.


Air Shower Dimensions and Design Considerations


Standard Dimensions

Air showers are available in various standard dimensions and configurations. Typical dimensions for air showers range from 1 meter by 1 meter to 2 meters by 2 meters. However, larger sizes, such as 2 meters by 3 meters or 2 meters by 4 meters, are also commonly available. These dimensions provide sufficient space for individuals to stand comfortably while being subjected to the high-velocity air jets.


Customization Options

Air showers can also be customized to meet specific requirements. Customization options include adjusting the dimensions to fit available space, accommodating multiple users simultaneously, or incorporating additional features for equipment or material transfer. When customizing air shower dimensions factors such as cleanroom layout, workflow, and specific operational needs should be taken into account.


Considerations for Determining Air Shower Dimensions


Traffic Volume

The number of personnel entering the cleanroom is a crucial factor in determining the required capacity of the air shower. Evaluating the traffic volume helps determine the number of air showers needed and their dimensions. This calculation ensures efficient entry and contamination control while minimizing waiting time for personnel.


Cleanroom Classification

Cleanrooms are classified based on the maximum allowable particle count per cubic meter of air. Different cleanroom classifications have specific requirements for particle removal efficiency. Selecting air shower dimensions that match the cleanroom classification ensures effective particle removal and adherence to cleanliness standards.


Equipment and Material Transfer

If the air shower is used for equipment or material transfer, the size and dimensions of the equipment or materials must be considered when determining air shower dimensions. Sufficient space should be provided to accommodate the equipment or materials while maintaining effective airflow and particle removal.


Air Shower Design Features and Functionality


Entry and Exit Systems

The number and placement of entry and exit doors in the air shower are important design considerations. Multiple doors facilitate smooth traffic flow and minimize cross-contamination. Air curtain systems and interlocking mechanisms can be incorporated to enhance contamination control by preventing simultaneous door openings.


Airflow Distribution

Proper airflow distribution within the air shower is essential for effective particle removal. High-velocity, HEPA-filtered air jets should be evenly distributed over the entire body or surface being decontaminated. The design should minimize turbulence and ensure efficient particle capture and removal.


Interior Space and Configurations

Optimizing the interior space of the air shower allows for comfortable entry and movement. The design should consider user ergonomics, providing sufficient space for individuals to stand and move freely. Additionally, configurations can be customized to accommodate multiple users simultaneously or facilitate equipment or material transfer operations.


Compliance with Standards and Regulations


International Standards

Air showers should comply with international standards for cleanroom technology, such as ISO 14644. These standards define the requirements for cleanroom cleanliness, including particle count limits. Adhering to these standards ensures the air shower's effectiveness in particle removal and contamination control.


Safety Considerations

Safety features should be incorporated into the air shower design to protect personnel and maintain a safe working environment. This includes emergency stop buttons, sensors for detecting obstructions, and compliance with electrical and fire safety codes.


Air Shower Dimensions


Kwang KW-AS Series Air Shower Spec Sheet
ModelKW-AS-1KW-AS-2KW-AS-3KW-AS-4
MaterialAvailable in 100% SUS304 Stainless Steel and/or High-Quality 1.2 mm Cold-Rolled Steel Plate
Users12-33-46-8
Air Shower Time0- 99s (Adjustable)
Number of Nozzle12(Two Sides)24(Two Sides)36(Two Sides)48(Two Sides)
Mouth Diameter of NozzleΦ30mm
Air Velocity> 25 m/s
Door CloserDorma (German) Door Closer
Electronic LockLCJ Electronic Lock
Filter Efficacy≥99.995% of Particles ≥0.3μm
Control PanelSUS304 frame, LCD display, PLC control system
High Efficiency AirFilter Size(mm)600 × 600 × 120
Exterior Size(mm)1400 x 1000
x 2100
1400 x 2000
x 2100
1400 x 3000
x 2100
1400 x 4000
x 2100
Interior Size(mm)800 x 900
x 1960
800 x 1900
x 1960
800 x 2900
x 1960
800 x 3900
x 1960
Power Source380V, 50HZ, we can made nonstandard voltage for different country
Lighting1 Recessed LED2 Recessed LED3 Recessed LED4 Recessed LED
Maximum PowerConsumption1.1KW2.2KW3.3KW4.4KW



Conclusion


Designing air showers with appropriate dimensions and considering key design features is crucial for cleanroom efficiency and contamination control. Standard dimensions and customization options allow for tailored solutions to meet specific cleanroom requirements. Factors such as traffic volume, cleanroom classification, and equipment or material transfer should be considered when determining air shower dimensions. Compliance with standards and regulations ensures the air shower's effectiveness in removing particles and maintaining cleanroom integrity. By prioritizing proper design and dimensions, air showers contribute significantly to the overall cleanliness and efficiency of cleanroom environments.


FAQs (Frequently Asked Questions)


Q: Can air showers be customized to fit specific cleanroom layouts?A: Yes, air showers can be customized to fit specific cleanroom layouts. Customization options include adjusting dimensions, incorporating additional features for equipment or material transfer, and adapting the design to accommodate multiple users simultaneously.


Q: What are the typical dimensions for an air shower?

A: Typical air shower dimensions range from 1 meter by 1 meter to 2 meters by 2 meters. However, larger sizes, such as 2 meters by 3 meters or 2 meters by 4 meters, are also commonly available. Custom dimensions can be designed to fit specific requirements.


Q: How many air showers are required based on traffic volume?

A: The number of air showers required depends on the traffic volume of personnel entering the cleanroom. By evaluating the number of personnel and their entry frequency, the appropriate number of air showers can be determined to ensure efficient entry and contamination control.


Q: Are there any safety considerations when designing air showers?

A: Yes, safety considerations are important when designing air showers. Incorporating features such as emergency stop buttons, sensors for detecting obstructions, and compliance with electrical and fire safety codes ensures a safe working environment for personnel.


Q: What are the international standards for cleanroom technology that air showers should comply with?

A: Air showers should comply with ISO 14644, which defines the requirements for cleanroom cleanliness, including particle count limits. Adhering to these standards ensures the effectiveness of air showers in particle removal and contamination control.


Kwang Air Shower is proud to offer examples of a variety of our air shower projects below.  Swing Door Cargo Air ShowerAir Shower QualificationAir Shower Price DescriptionAir Shower MaintenanceReplacement Of Air Shower FilterFast Rolling Shutter Door.

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