After moving equipment in the medical device assembly area, what items does FFU need to re-verify?
Why you need to re-authenticate after moving your device
The equipment layout in the medical device assembly area may move due to process adjustments, production capacity changes, or new product introduction. After the equipment is moved, although the FFU itself does not move, the work station, operating position and material path have changed, and the original air supply coverage of the FFU may no longer match the new layout.
Equipment movement may also affect the return air path. The original position of the equipment did not block the return air outlet, but it may block the return air after it is moved. Changes in equipment heating locations may also affect local airflow and temperature distribution.
Therefore, after the equipment in the medical device assembly area is moved, FFU-related items need to be re-verified. Just because the FFU has not moved, it does not mean that the cleaning and protection effect remains unchanged. Aili Industrial has complete production capabilities in FFU complete machines and pharmaceutical industry supporting equipment, and can coordinate with the project for layout adjustment and verification. For the basic structure of the FFU machine, you can refer toAili Industrial FFU fan filter unit。
How to do layout comparison
Before re-verification, do a layout comparison. Compare the layout of the device before it was moved and the layout after it was moved. Mark the equipment location, work station, operating area, material path, return air outlet and FFU location.
After comparison, confirm the following: whether the key operating position is still within the FFU air supply coverage; whether the FFU air supply path is blocked after the equipment is moved; whether the return air outlet is blocked after the equipment is moved; whether the personnel operating position and material path change; whether there are new pollution sources or heat sources entering the area.
Layout comparisons can help identify areas that require focused verification.
How to review FFU coverage
FFU coverage review should be performed under the new layout. Measure wind speed and airflow direction at key operating locations to confirm whether there is still sufficient clean airflow coverage. If the equipment is moved and the key position deviates from the FFU air supply center, the wind speed may decrease.
During the review, it is necessary to measure not only the wind speed on the FFU outlet surface, but also the wind speed at the product exposure position and personnel operating position. If insufficient coverage is found, the FFU position can be adjusted, local air supply added, or the equipment layout changed.
For workstations that require partial protection, please refer toClean Workbench Learn about other forms of local cleaning installations.
How to check return air shielding
Return air obstruction is a problem that is easily overlooked after the equipment is moved. After the equipment is moved, the return air outlet may be blocked or the return air path may be changed. If the return air is not smooth, airflow stagnation or pollution accumulation may occur in local areas.
The inspection contents include: whether the return air outlet is blocked by equipment or materials; whether the return air path is smooth; whether the return air volume changes; whether the regional pressure difference is stable. If you find that the return air is blocked, you can adjust the position of the equipment or clear the space around the return air outlet.
How to verify regional airflow
Area airflow verification includes airflow direction and airflow organization. After the equipment is moved, the airflow may change direction due to changes in obstacles. You can observe the direction of air flow through smoke or silk threads to confirm that the clean air flows from the supply side to the return side without obvious backflow or dead zone.
If the area has pressure difference requirements, the pressure difference should also be measured to confirm that the pressure difference is still within the control range after the equipment is moved.
How to retest cleanliness
After equipment is moved and layout adjusted, the cleanliness of the area should be retested. Retesting should be conducted under actual operating conditions, including personnel operation and equipment operation. Measuring points should cover critical operating locations and product exposure areas.
If the cleanliness is not up to standard, you can analyze the reasons, adjust FFU, return air or layout before retesting.
How verification records are retained
After revalidation, records should be retained. The content includes: layout drawings before and after the equipment is moved; FFU coverage review results; return air shielding inspection results; airflow direction and pressure difference records; cleanliness retest results; handling measures and retest conclusions.
Records can support subsequent maintenance, auditing and further adjustments. For medical device assembly areas, verification records are also part of quality management.
Issues that should be confirmed in advance during project communication
During the equipment movement and FFU verification stage in the medical device assembly area, it is recommended to confirm the following with the FFU manufacturer and quality management party: equipment movement range and layout changes; key operating positions and product exposure areas; FFU coverage requirements; return air outlet locations and return air paths; regional pressure difference requirements; cleanliness retest methods and judgment standards; verification record formats; and whether on-site support from the manufacturer is required.
If you are dealing with FFU verification after moving equipment in the medical device assembly area, you can visitAili Industrial FFU fan filter unit to understand the complete machine configuration, you can also contact Aili Industrial for verification support.
in conclusion
After the equipment in the medical device assembly area is moved, FFU needs to re-verify coverage, return air, airflow and cleanliness. The FFU itself has not moved and may lose its original protective effect due to changes in the work station. Layout comparison, coverage review, return air inspection and cleanliness retest are the main items of verification. Verification records should be retained.
Aili Industrial has complete production capabilities in FFU complete machines and pharmaceutical industry supporting equipment, and can coordinate with the project for layout adjustment and verification. If you need to know more about FFU verification in the medical device assembly area, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
