Airflow Regime: Recirculating airflow

• Dynamic airflow provides an air barrier to prevent contaminants from entering into critical controlled environments during material transfers
  

• Vertical purging to trace any contaminants that have potentially entered post material transfer.

• Unit operates with a recirculating airflow and on-board fans hence, external ducting is not required.

• 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. Can Laminar Flow Pass Boxes handle large items?

Yes, Laminar Flow Pass Boxes can handle large items, though the size of the box must be considered to ensure proper airflow and contamination control. Larger items may require a pass box with greater dimensions to allow for easy transfer while maintaining a sterile environment. It is crucial to choose a pass box with adequate internal space and airflow capacity for the size of the materials being transferred.

2. Are Laminar Flow Pass Boxes suitable for pharmaceutical applications?

Laminar Flow Pass Boxes are highly suitable for pharmaceutical applications. They ensure the sterile transfer of materials into and out of controlled environments, such as cleanrooms, preventing contamination of sensitive pharmaceutical products. The filtration system, typically using HEPA or ULPA filters, removes airborne particles, maintaining the strict contamination control necessary for pharmaceutical manufacturing.

3. Can Laminar Flow Pass Boxes be retrofitted into existing cleanrooms?

Yes, Laminar Flow Pass Boxes can be retrofitted into existing cleanrooms. Retrofitting involves: - Properly integrating the pass box into the cleanroom structure - Ensuring it aligns with the cleanroom’s airflow and contamination control system - Making necessary adjustments to door systems and sealing for airtight operation Retrofitting ensures that the cleanroom’s sterile environment remains intact while enhancing material transfer efficiency.

4. Can Laminar Flow Pass Boxes be installed in humid environments?

Yes, Laminar Flow Pass Boxes can be installed in humid environments. However, special considerations must be made for the materials and components used in the pass box. For humid environments, corrosion-resistant materials like stainless steel are recommended. Additionally, it’s essential to ensure proper humidity control and monitor air filtration systems to maintain the effectiveness of the pass box in such conditions.

5. How are cleanroom pass boxes tested for quality?

Cleanroom pass boxes are tested for quality using several methods: - Airflow testing to ensure proper laminar flow and filtration - Particle count tests to verify the efficiency of the filters - Leak testing to confirm airtight construction These tests ensure that the pass box maintains the required contamination control standards and operates effectively within the cleanroom environment.

6. How do you maintain a Laminar Flow Pass Box?

Maintaining a Laminar Flow Pass Box involves regular cleaning, filter replacement, and performance checks. You should clean the surfaces with non-abrasive agents, replace HEPA or ULPA filters periodically, and test the airflow and filtration systems to ensure proper functionality. Regular maintenance keeps the pass box in optimal condition and prevents contamination risks in the cleanroom.

7. How do Laminar Flow Pass Boxes affect the cleanliness of a cleanroom?

Laminar Flow Pass Boxes positively affect the cleanliness of a cleanroom by preventing contaminants from entering during material transfer. They create a sterile environment by filtering the air and maintaining a constant unidirectional airflow that moves particles away from the cleanroom. This ensures that the cleanroom’s air quality remains uncontaminated, preserving its integrity for sensitive applications.

8. How do you calibrate a Laminar Flow Pass Box?

Calibrating a Laminar Flow Pass Box involves checking and adjusting key parameters such as airflow velocity and filtration efficiency. Calibration typically includes: - Verifying the airflow rate using an anemometer - Testing filter performance through particle count measurements - Ensuring the system maintains the required laminar flow direction Calibration ensures the pass box meets its performance specifications and maintains cleanroom standards.

9. How do you choose the right Laminar Flow Pass Box for your cleanroom?

Choosing the right Laminar Flow Pass Box depends on factors such as: - The size of the items being transferred - The airflow rate required for your cleanroom specifications - The filtration efficiency needed for contamination control Consider these factors along with the cleanliness class of the cleanroom to select a pass box that meets your specific needs and regulatory requirements.

10. How do Laminar Flow Pass Boxes contribute to maintaining ISO 14644 standards?

Laminar Flow Pass Boxes help maintain ISO 14644 standards by providing an efficient means of transferring materials into and out of cleanrooms without compromising air quality. They utilize HEPA or ULPA filtration systems to filter out particles and maintain a controlled airflow, which is essential for meeting the particle concentration limits specified in ISO 14644-1 for different cleanroom classes.

11. What is the cost of a Laminar Flow Pass Box?

The cost of a Laminar Flow Pass Box can vary depending on factors such as size, customization, and additional features. On average, basic models may start from a few thousand dollars, while more complex or custom units could cost significantly more. It's important to evaluate the specific requirements of your cleanroom to determine the right balance of cost and performance.

12. What are the maintenance requirements for a cleanroom pass box?

Maintenance requirements for a cleanroom pass box include: - Regular cleaning of both interior and exterior surfaces - Periodic replacement of HEPA or ULPA filters - Testing airflow and filtration efficiency - Checking the seals and doors to ensure they are airtight These steps are essential to ensure the pass box continues to operate effectively and maintains the cleanliness of the cleanroom environment.

13. How is the airflow direction in a Laminar Flow Pass Box controlled?

The airflow direction in a Laminar Flow Pass Box is controlled by the design of the system, which uses a unidirectional flow of air. The system ensures that air moves in a steady, uniform direction, typically from top to bottom or side to side, to maintain a sterile environment. The airflow is regulated through the use of fans and filters to prevent any backflow of contaminants into the cleanroom.

14. Are there size limitations for Laminar Flow Pass Boxes?

Yes, there are size limitations for Laminar Flow Pass Boxes. While pass boxes can be custom-made to accommodate larger items, the overall size and airflow efficiency of the box must be considered. The box should be appropriately sized to ensure effective laminar airflow and maintain contamination control, while also being large enough to handle the materials being transferred.

15. How does a Laminar Flow Pass Box improve workflow in cleanrooms?

A Laminar Flow Pass Box improves workflow in cleanrooms by streamlining the process of material transfer while maintaining a sterile environment. It reduces the need for personnel to enter the cleanroom, minimizing the risk of contamination. Additionally, the efficient transfer system saves time and enhances productivity by allowing materials to be moved in and out quickly and safely.