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Multi-person Air Shower: Enhancing Cleanroom Contamination Control

In cleanroom environments, maintaining high levels of cleanliness and controlling contamination is of utmost importance. To achieve this, various measures and equipment are employed, one of which is the multi-person air shower

Multi-person Air Shower: Enhancing Cleanroom Contamination Control

What is a Multi-person Air Shower?

A multi-person air shower is a specialized chamber designed to remove particulate contaminants from personnel entering or exiting a cleanroom environment. It serves as an essential part of contamination control strategies, ensuring that individuals entering the cleanroom are thoroughly cleansed of any potential contaminants they might carry.

How Does a Multi-person Air Shower Work?

The multi-person air shower operates by creating a high-velocity, filtered air stream that forcefully blows across the individuals within the chamber. This high-speed air effectively dislodges and removes particles from the person's body, clothing, and personal belongings. The air shower is equipped with multiple adjustable nozzles strategically placed to cover the entire body surface area, including difficult-to-reach areas such as footwear.

The Importance of Multi-person Air Showers in Cleanrooms

Enhancing Personnel Hygiene

Multi-person air showers play a crucial role in maintaining personnel hygiene within cleanroom facilities. As individuals enter the air shower, the powerful air streams dislodge and remove particles, such as dust, lint, and other contaminants, that might adhere to their bodies. This reduces the chances of introducing foreign particles into the cleanroom environment, ensuring a higher level of cleanliness.

Minimizing Contamination Transfer

Controlling contamination transfer is vital in cleanrooms, as even the smallest particles can have a significant impact on product quality and reliability. The multi-person air shower acts as a barrier between the outside environment and the cleanroom, preventing contaminants from entering when personnel transition in and out. By effectively removing particles, the air shower helps maintain the desired cleanroom classification and minimizes the risk of product contamination.

Reducing Cleanroom Downtime

Cleanrooms often require regular maintenance and cleaning to sustain their controlled environment. The use of multi-person air showers reduces the frequency and duration of cleanroom shutdowns. By effectively removing contaminants from personnel before they enter the cleanroom, the air shower helps extend the time between cleaning cycles, resulting in increased operational efficiency and reduced downtime.

Factors to Consider When Choosing a Multi-person Air Shower

When selecting a multi-person air shower for a cleanroom facility, several factors should be taken into account:

Air Shower Capacity: Determine the number of individuals that will be using the air shower simultaneously to ensure it can accommodate the expected personnel flow.

Airflow Velocity and Coverage: Evaluate the airflow velocity and coverage of the air shower to ensure efficient removal of contaminants from the entire body surface area.

Filtration Efficiency: Consider the filtration system's efficiency in removing particles of different sizes to meet the specific cleanroom requirements.

Construction and Materials: Choose a robust and durable air shower constructed from materials compatible with cleanroom protocols, such as stainless steel.

Control Systems: Look for user-friendly control systems that allow for easy operation and monitoring of the air shower's performance.

Compliance and Certifications: Ensure that the selected air shower meets relevant industry standards and certifications for cleanroom applications.

Installation and Maintenance

Proper installation and regular maintenance are vital for optimal performance and longevity of multi-person air showers. It is recommended to involve professional technicians during the installation process to ensure accurate positioning and integration with the cleanroom. Routine maintenance, including filter replacements, airflow calibration, and cleanliness checks, should be carried out to uphold the air shower's effectiveness and reliability.

Best Practices for Using a Multi-person Air Shower

To maximize the benefits of a multi-person air shower, the following best practices should be implemented:

Proper Attire: Personnel should wear appropriate cleanroom garments, including cleanroom suits, gloves, and shoe covers, before entering the air shower.

Thorough Preparation: Prior to entering the air shower, individuals should remove loose particles, such as lint or dust, from their clothing and personal belongings.

Effective Disrobing: Inside the air shower, individuals should follow the designated disrobing process to remove any particles trapped in their clothing.

Even Distribution: Position yourself within the air shower to ensure equal exposure to the high-velocity air streams, paying attention to areas that are easily overlooked, such as the back and soles of the feet.

Timely Exit: After the air shower cycle completes, individuals should promptly exit to maintain cleanroom integrity and prevent recontamination.

Future Developments in Multi-person Air Showers

As cleanroom technology continues to advance, ongoing developments are being made to improve the efficiency and functionality of multi-person air showers. Some future developments include:

Smart Air Showers: Integration of sensors and automation technology to optimize air shower performance, monitor air quality, and enhance user experience.

Energy-Efficient Designs: Implementation of energy-saving features, such as variable airflow control and LED lighting, to reduce power consumption without compromising cleanliness.

Enhanced Particle Removal: Advancements in nozzle design and airflow patterns to ensure more effective and targeted particle removal, especially in hard-to-reach areas.

Advanced Filtration Systems: Utilization of advanced filtration media and technologies to achieve higher filtration efficiencies and remove a broader range of particle sizes.


Multi-person air showers are invaluable tools for contamination control in cleanroom environments. By effectively removing particles from personnel before they enter the cleanroom, these air showers enhance cleanliness, minimize contamination transfer, and reduce cleanroom downtime. When choosing a multi-person air shower, it is crucial to consider factors such as capacity, airflow velocity, and filtration efficiency. By following best practices and staying abreast of future developments, cleanroom facilities can maintain optimal contamination control and ensure the integrity of their processes.


Q1: How many people can use a multi-person air shower at once?

A1: The capacity of multi-person air showers varies depending on the specific model and design. Common configurations range from two to six individuals per cycle, but custom solutions can be tailored to accommodate larger groups.

Q2: What is the typical duration of an air shower cycle?

A2: The duration of an air shower cycle typically ranges from 15 to 30 seconds. However, it can be adjusted based on the desired airflow velocity, cleanliness requirements, and the number of individuals using the air shower.

Q3: Can a multi-person air shower be customized for specific cleanroom requirements?

A3: Yes, multi-person air showers can be customized to meet the specific needs and cleanroom standards of different industries. Manufacturers offer options for tailored dimensions, filtration efficiencies, control systems, and additional features.

Q4: Are multi-person air showers energy-efficient?

A4: Yes, modern multi-person air showers are designed with energy efficiency in mind. They incorporate features such as variable airflow control, efficient filtration systems, and LED lighting to minimize power consumption while maintaining high-performance standards.

Q5: Can multi-person air showers be retrofitted into existing cleanrooms?

A5: Yes, multi-person air showers can be retrofitted into existing cleanroom facilities. However, it is essential to assess the available space, HVAC system compatibility, and electrical requirements to ensure seamless integration and optimal functionality.

Kwang Purification is proud to offer examples of a variety of our air shower projects below.  Air Showers and Pass Thrus,  Single Person Single Blowing Air ShowerAir Shower in Food IndustryComponents of Air ShowerRoller Shutter Door Air ShowerColor Steel Air ShowerChannel Air Shower.

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