Airflow Regime: Recirculating airflow

• The working principle of air shower transfer window is introduced as follows:

• Structural design: the air shower transfer window is usually made of stainless steel or other anti-corrosion materials, with an internal air shower system.

• Objects placed: the objects to be transferred are placed in the transfer window.

• Door control system: the transfer window is equipped with a double door system, the inner and outer doors cannot be opened at the same time to prevent contamination.

• Activate air shower: When the inner door is closed, the user can press the start button to activate the air shower system.

• Air Filtration: High efficiency filters (such as HEPA filters) in the air shower system filter particles and microorganisms in the air.

• High Velocity Airflow: Filtered air is ejected at a high velocity, creating an airflow that cleans the surface of the item.

• Time Setting: The air drenching time is usually set between a few seconds to more than ten seconds, adjusted according to demand.

• Exit: After the air drenching process, the inner door opens and the items are transferred to the clean area.

• Maintenance and inspection: Regularly check and replace the filter to ensure the effect of air shower.

• The above is an extremely brief introduction of the working principle of air shower transfer window.

• Support stand or Base box

• Onboard LED light and/or UV light

• Internal shelves

• Door release buttons

• Interlock release rocker switches

• Buzzer system (to alert personnel on the opposite side during material transfer)

• Intercom system

• Fan fault alarms with customized blowers

• Lead shielding

• Roller Conveyors (only for DFLH)

• Auto sliding PVC doors (only for DFLH)

• Rails to hang gowns (only for DFLH)

1. What are the common misconceptions about Air Shower Pass Boxes?

Common misconceptions about Air Shower Pass Boxes include the belief that they eliminate all contaminants, when in fact they significantly reduce them but do not guarantee complete sterility. Many people also think that the air shower feature alone suffices for cleanliness without proper operating protocols and maintenance. Additionally, some users may underestimate the importance of regular filter changes and proper integration with other cleanroom systems for optimal performance.

2. Are there portable options for Air Shower Pass Boxes?

Yes, there are portable options available for Air Shower Pass Boxes. These units are designed for flexibility, allowing easy movement between different cleanroom environments or locations. They typically come with lightweight materials and compact designs without compromising on the effectiveness of air filtration and contamination control. Portable Air Shower Pass Boxes are ideal for facilities needing temporary or adaptable cleanroom solutions.

3. What is the role of a Cleanroom Pass Box in a sterile environment?

A Cleanroom Pass Box serves a critical function in maintaining the sterile environment of cleanrooms by providing a controlled transfer point for materials and equipment. It minimizes the risk of contamination during the exchange between clean and non-clean areas. The pass box is designed to ensure that items entering the cleanroom are decontaminated through methods such as air showers or UV sterilization, thus maintaining the integrity of the cleanroom's environment. Additionally, it helps streamline workflows by allowing for efficient material transfer without the need for personnel to enter the cleanroom, which can disrupt the controlled atmosphere.

4. What is the airflow direction in a Cleanroom Pass Box?

The airflow direction in a Cleanroom Pass Box is typically designed to move from the clean side to the non-clean side when the box is in use. This unidirectional airflow helps prevent contaminants from entering the cleanroom when materials are being transferred. The air is filtered and blown into the box, creating a protective air barrier that minimizes the risk of particulate contamination. Proper airflow management is essential for maintaining the cleanliness standards required in sensitive environments.

5. Can I rent an Air Shower Pass Box instead of purchasing one?

Yes, renting an Air Shower Pass Box is an option available for many facilities, especially those with temporary cleanroom requirements or projects. Renting allows organizations to meet specific compliance needs without the upfront costs associated with purchasing equipment. Rental agreements often include maintenance and support services, making it a practical choice for companies looking to maintain flexibility while ensuring adherence to cleanliness standards.

6. How do I integrate an Air Shower Pass Box with existing cleanroom systems?

Integrating an Air Shower Pass Box with existing cleanroom systems involves assessing the layout and airflow dynamics of the current setup. It is essential to position the pass box at an entry point where materials can be efficiently decontaminated before entering the cleanroom. Coordination with HVAC systems is also crucial to ensure that the air pressure and flow are consistent. Additionally, staff training on operational procedures and maintenance protocols will help ensure seamless integration and optimal performance.

7. How do you measure the particle count in an Air Shower Pass Box?

Measuring the particle count in an Air Shower Pass Box typically involves using a particle counter, which can detect and quantify airborne particles within the unit. The process involves conducting tests while the air shower is operational to evaluate the effectiveness of the filtration system. Regular monitoring is essential to ensure that the particle levels remain within acceptable limits, indicating that the pass box is functioning properly and maintaining cleanliness standards.

8. How does temperature control work in a Cleanroom Pass Box?

Temperature control in a Cleanroom Pass Box is achieved through the use of integrated heating and cooling systems that maintain a stable environment. These systems work in conjunction with the cleanroom's overall climate control to ensure that materials entering the cleanroom are at the appropriate temperature to prevent thermal shock or condensation. Monitoring devices are often included to provide real-time data on temperature levels, ensuring compliance with specific cleanroom requirements.

9. Can an Air Shower Pass Box be used for large equipment?

An Air Shower Pass Box is generally designed for smaller items and materials, and while some larger models may accommodate bigger equipment, it is essential to ensure that the dimensions and airflow capacity are adequate. Custom solutions may be necessary for large equipment to ensure proper decontamination and to fit within the cleanroom processes. Consulting with manufacturers can help identify suitable options for larger items while maintaining cleanliness standards.

10. How do I document maintenance for a Cleanroom Pass Box?

Documenting maintenance for a Cleanroom Pass Box involves keeping a detailed log that includes dates of service, types of maintenance performed, and any observations or issues noted during inspections. It is essential to record filter changes, cleaning schedules, and any repairs made to ensure compliance with regulatory standards. This documentation### 11. What are the common features of high-quality Cleanroom Pass Boxes?

High-quality Cleanroom Pass Boxes typically feature robust construction materials such as stainless steel or powder-coated surfaces that are easy to clean and resistant to corrosion. They often include HEPA or ULPA filtration systems to ensure effective particle removal, along with a reliable air shower function that uses high-velocity air to minimize contamination. Additional features may include interlocked doors to prevent simultaneous opening, clear viewing windows for monitoring, and customizable sizes to fit specific cleanroom layouts and requirements.

12. What specifications should I consider when purchasing an Air Shower Pass Box?

When purchasing an Air Shower Pass Box, consider several key specifications such as external dimensions, airflow rate, and filtration efficiency. It's important to evaluate the size of the box to ensure it accommodates the intended materials. Additionally, check the type of filters used (HEPA or ULPA) and the airflow patterns to confirm they meet cleanroom standards. Other factors include power requirements, control systems for operational settings, and whether the unit includes features like interlocks and alarms for added safety and efficiency.

13. How often should the filters in an Air Shower Pass Box be replaced?

The frequency of filter replacement in an Air Shower Pass Box depends on usage and environmental conditions. Generally, filters should be inspected regularly, and HEPA filters may need replacement every 6 to 12 months under normal operating conditions. However, if the pass box undergoes heavy use or is located in a high-contamination area, more frequent changes may be necessary. Maintaining a regular maintenance schedule can help ensure optimal air quality and performance.

14. How does an Air Shower Pass Box function?

An Air Shower Pass Box functions by creating a controlled environment for transferring materials between clean and non-clean areas. When an item is placed inside the box, high-velocity air jets blow filtered air to remove surface contaminants. The air shower cycle typically lasts for a specified duration, ensuring thorough decontamination. Once the air shower process is complete, the doors can be opened to allow the item to enter the cleanroom, while interlocking mechanisms prevent simultaneous door openings to maintain cleanroom integrity.

15. What is the typical lifespan of an Air Shower Pass Box?

The typical lifespan of an Air Shower Pass Box can range from 10 to 15 years, depending on factors such as usage, maintenance practices, and the quality of the materials used in its construction. Regular maintenance and timely replacement of components, such as filters and seals, can extend the lifespan significantly. Investing in high-quality equipment and adhering to manufacturer guidelines for operation and upkeep are essential for achieving optimal longevity.

16. What is the warranty period for Cleanroom Pass Boxes?

The warranty period for Cleanroom Pass Boxes varies by manufacturer and model, but it generally ranges from one to five years. Warranties often cover defects in materials and workmanship, but specific terms can differ. It is advisable to review the warranty details carefully when purchasing to understand what is included and any conditions that may apply. Some manufacturers may also offer extended warranty options for additional peace of mind.

17. How do you clean the interior of a Cleanroom Pass Box?

Cleaning the interior of a Cleanroom Pass Box involves using an appropriate cleaning solution that complies with cleanroom standards, typically a mild detergent or specialized cleaner. The surfaces should be wiped down thoroughly to remove dust and contaminants, paying special attention to corners and seams. It's crucial to follow a cleaning protocol that includes disinfection processes, particularly if the pass box is used for sensitive applications. Regular cleaning schedules should be established to maintain hygiene and prevent contamination.

18. Can an Air Shower Pass Box be installed outdoors?

While some Air Shower Pass Boxes can be designed for outdoor use, most are intended for indoor environments where temperature and humidity can be controlled. Installing a pass box outdoors may expose it to elements that could affect its functionality and longevity, such as moisture, extreme temperatures, and contaminants. If outdoor installation is necessary, it is essential to select a model specifically designed for such conditions and ensure that it is adequately protected from environmental factors.