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 contaminants can an Air Shower Pass Box effectively remove?

An Air Shower Pass Box is designed to effectively remove various contaminants such as dust, lint, and other airborne particles from items before they enter a cleanroom environment. The high-velocity air jets within the pass box dislodge particles, ensuring that only clean materials are transferred. Additionally, it can help reduce microbial contamination, making it crucial for maintaining sterile conditions in sensitive areas.

2. What are the benefits of using a Cleanroom Pass Box?

Using a Cleanroom Pass Box offers several benefits, including enhanced contamination control, improved workflow, and reduced risk of cross-contamination. These pass boxes allow for the safe transfer of materials without compromising the integrity of the cleanroom environment. By isolating the transfer process, they help maintain strict cleanliness standards, which is vital for industries such as pharmaceuticals and biotechnology.

3. Are there manual options for Cleanroom Pass Boxes?

Yes, there are manual options available for Cleanroom Pass Boxes. These manual pass boxes typically feature simple mechanical doors that can be opened and closed by hand, allowing users to control the transfer of materials without the need for electrical components. Manual options are often favored in settings where electronic systems may pose a risk or where simplicity and cost-effectiveness are prioritized.

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

An Air Shower Pass Box is generally designed for smaller items, as its dimensions may limit the size of equipment that can be transferred. However, custom solutions or larger models can be manufactured to accommodate bigger equipment, provided they still maintain the required airflow and contamination control standards. It is essential to consult with manufacturers to determine the suitability of specific pass box models for larger items.

5. How does an Air Shower Pass Box help in research laboratories?

An Air Shower Pass Box plays a critical role in research laboratories by preventing contamination during the transfer of samples, instruments, and materials. By utilizing high-velocity air jets, it effectively cleans items before they enter the controlled laboratory environment, thereby safeguarding experimental integrity. This is especially important in labs dealing with sensitive biological or chemical materials, where even minimal contamination can skew results.

6. How do I test the air quality in a Cleanroom Pass Box?

To test the air quality in a Cleanroom Pass Box, one can conduct particle counts using a laser particle counter. This device measures the concentration of airborne particles within the pass box before and after operation. Additionally, air quality can be assessed through microbial testing and measuring air velocity to ensure it meets the specified cleanroom standards.

7. How do you measure the effectiveness of an Air Shower Pass Box?

The effectiveness of an Air Shower Pass Box can be measured through particle count tests before and after the air shower process. By comparing the number of airborne particles in the pass box to the levels in the cleanroom environment, one can assess the reduction in contamination. Regular maintenance and calibration of the air shower system also contribute to maintaining its effectiveness.

8. How does an Air Shower Pass Box contribute to ISO compliance?

An Air Shower Pass Box contributes to ISO compliance by ensuring that stringent cleanliness and contamination control standards are met during material transfers. By effectively reducing the presence of airborne particles and contaminants, it helps organizations align with ISO regulations related to cleanroom environments. This is essential for industries that require adherence to these standards for quality assurance and regulatory compliance.

9. Can an Air Shower Pass Box help with static control?

While the primary function of an Air Shower Pass Box is to reduce airborne contaminants, some models can also assist with static control. These pass boxes may incorporate ionization systems that neutralize static charges on surfaces before items enter the cleanroom. This feature is particularly beneficial in environments sensitive to electrostatic discharge, such as electronics manufacturing.

10. How do you know if your Air Shower Pass Box is working effectively?

To ensure your Air Shower Pass Box is functioning effectively, regularly monitor air velocity and conduct particle count tests. The air velocity should meet the specified standards, typically between 20 to 30 feet per minute, and a significant reduction in particle counts should be observed after the air shower process. Additionally, periodic maintenance checks can help identify any operational issues.

11. How do I install a Cleanroom Pass Box?

Installing a Cleanroom Pass Box requires careful planning and adherence to cleanroom protocols. The box should be positioned in a location that minimizes airflow disruption in the cleanroom. After ensuring proper alignment with cleanroom walls, secure it using appropriate mounting hardware. Finally, connect the air supply and electrical systems as needed, and conduct tests to verify proper operation### 12. What are the common features of high-quality Cleanroom Pass Boxes?

High-quality Cleanroom Pass Boxes typically include features such as stainless steel construction for easy cleaning and durability, HEPA filtration systems to capture airborne particles, and interlocking doors to prevent simultaneous opening. Additionally, they may have air velocity monitoring systems, adjustable airflows, and observation windows for visual inspection during use. These features ensure optimal performance and compliance with cleanroom standards.

13. What types of materials are used to manufacture Cleanroom Pass Boxes?

Cleanroom Pass Boxes are usually manufactured from materials that are easy to clean and resistant to contamination. Common materials include stainless steel, which is durable and hygienic, and high-grade plastics that are non-porous and easy to sanitize. The choice of materials ensures that the pass boxes can withstand the rigorous cleaning processes required in cleanroom environments while maintaining structural integrity.

14. What precautions should be taken when using a Cleanroom Pass Box?

When using a Cleanroom Pass Box, several precautions should be taken to ensure maximum effectiveness. Users should always follow proper protocols for entering and exiting the pass box, including ensuring that one door is closed before opening the other. Regular maintenance checks should be conducted to ensure that the air shower system is functioning properly. Additionally, users should avoid overloading the pass box to maintain effective airflow and contamination control.

15. What is the noise level of an Air Shower Pass Box during operation?

The noise level of an Air Shower Pass Box during operation typically ranges from 60 to 75 decibels, depending on the model and the power of the air jets. While this noise level is comparable to normal conversation, it can vary based on the design and airflow settings. Many manufacturers design their equipment to minimize noise, making them suitable for environments where sound levels need to be controlled.

16. How does an Air Shower Pass Box help prevent contamination?

An Air Shower Pass Box helps prevent contamination by utilizing high-velocity air jets that blow away dust and particulate matter from items before they enter a cleanroom environment. This process effectively reduces the number of contaminants that can compromise the sterile conditions within the cleanroom. By providing a controlled environment for material transfer, the pass box significantly minimizes the risk of cross-contamination, which is crucial in industries such as pharmaceuticals and electronics.