When pharmaceutical FFU cooperates with cleaning and disinfection, which materials and structures should be confirmed in advance
Cleaning and disinfection of pharmaceutical clean areas places additional demands on FFU
Pharmaceutical clean areas have clear cleaning and disinfection requirements for the environment and equipment. Clean areas require regular cleaning, and some areas require surface treatment with disinfectants or sporicidal agents. The FFU is installed on the ceiling or above the equipment in the clean area, and its box, filter, seals and electrical components may come into contact with the cleaning and disinfection medium.
If the FFU material and structure are not confirmed for cleaning and disinfection conditions, surface corrosion, aging of seals, peeling of coatings, or moisture in electrical components may occur during long-term operation. These issues are not necessarily exposed early in the installation, but can impact equipment life and clean area maintenance.
The selection of pharmaceutical FFU should not only look at the air volume and filtration efficiency, but also combine the cleaning and disinfection methods to confirm the suitability of materials and structures. Aili Industrial has complete production capabilities in FFU complete machines and pharmaceutical industry supporting equipment, and can provide corresponding configurations according to the project cleaning and disinfection conditions. For the basic structure of the FFU machine, please refer toAili Industrial FFU fan filter unit。
Cleaning and disinfection media need to be clarified in advance
Different pharmaceutical clean areas use different cleaning and disinfection media. Common ones include isopropyl alcohol, ethanol, hydrogen peroxide, quaternary ammonium salt disinfectants, chlorine-containing disinfectants and sporicides. Different media have different corrosiveness and compatibility with materials.
When selecting FFU box materials and sealing materials, you should first clarify which cleaning and disinfection media are used in the project, what the concentration is, whether the contact method is wiping or spraying, and the frequency of contact. Without clear media information, material and seal selection may deviate from actual service conditions.
It should be reminded that the stainless steel box does not automatically adapt to all disinfection media. Chlorine-containing disinfectants may cause pitting corrosion on some stainless steel grades, and hydrogen peroxide may also affect seals at high concentrations. Seals, fasteners, coatings and electrical components all need to be individually qualified according to media conditions.
How to check box material and surface structure
Common materials for FFU cabinets include plastic-sprayed steel plates, stainless steel and aluminum alloys. Pharmaceutical clean areas usually prefer stainless steel boxes because stainless steel has a smooth surface, is easy to clean, and has good corrosion resistance. However, different grades of stainless steel have different corrosion resistance, which needs to be confirmed according to the cleaning and disinfection medium.
Surface structure also affects cleaning performance. The surface of the box should be as smooth as possible, without dead corners or gaps, to reduce the accumulation of particles and microorganisms. Seams should be minimized or sealed. Fasteners should avoid exposed threads or structures that are difficult to clean. If the cabinet is coated, it is necessary to confirm the compatibility of the coating with the cleaning and disinfection medium to avoid it falling off after long-term use.
For areas that require frequent cleaning, stainless steel FFU may be a more suitable choice. Please refer to the specific structure.Stainless Steel FFU understands cabinet materials and surface treatments.
How to check seals and filters
The seal is the part of the FFU that is easily affected by the cleaning and disinfecting media. Gaskets, sealing strips and tank sealing materials need to be compatible with the cleaning and disinfecting media. If the seal expands, contracts or hardens under the action of the media, it may affect the filter sealing effect and cause unfiltered air to bypass the filter element.
The filter itself also needs to be confirmed. The filter media, frame, and sealant of HEPA or ULPA filters may come into contact with cleaning and disinfecting media. Some filters have waterproof or anti-corrosion treatments on their surfaces, while others do not. If the spray directly contacts the air outlet surface of the filter during cleaning and disinfection, you need to confirm whether the filter is suitable for this operation.
Filter sealing methods also need to be matched with cleaning methods. Sump seals and gasket seals have different cleaning difficulties and different replacement methods. Pharmaceutical projects can choose a suitable sealing form based on cleaning and disinfection requirements.
How to check electrical components and protection levels
The electrical components of the FFU include controllers, junction boxes, cables and sensors. When cleaning pharmaceutical clean areas, electrical components may come into contact with moisture or disinfectants if sprays or wet wipes are used. The degree of protection of electrical components needs to match the cleaning method.
If a damp cloth is used for cleaning, the electrical components should have basic moisture resistance. If sprays are used, a higher degree of protection or additional protective measures may be required. Cable insulation materials should also be compatible with cleaning and disinfecting media.
For areas with explosion-proof or special protection requirements, the FFU electrical configuration needs to be confirmed according to project requirements. Regular FFU, anti-static FFU and explosion-proof FFU are different configurations and cannot replace each other.
How to verify after cleaning
After cleaning and disinfection, the FFU needs to be restored to normal operating conditions. The verification includes: whether the surface of the box is clean and free of residue; whether the seals are intact and not deformed; whether the filter is damp or damaged; whether the electrical components are normal; whether the FFU air volume and wind speed return to normal; whether the area cleanliness meets the requirements.
If abnormalities in seals or electrical components are found during the cleaning process, they should be dealt with and recorded in time. For pharmaceutical clean areas, verification records after cleaning and disinfection are part of daily management.
Issues that should be confirmed in advance during project communication
At the pharmaceutical FFU selection stage, it is recommended to confirm the following with the manufacturer: type and concentration of cleaning and disinfection media; whether the cleaning method is wiping or spraying; cleaning frequency and contact time; box materials and surface treatment methods; compatibility of seal materials and media; whether the filter is suitable for contact with cleaning media; protection level of electrical components; verification methods after cleaning; maintenance and replacement methods.
Confirming these problems during the selection stage can reduce maintenance problems caused by unsuitable materials in the later stage. If you are selecting FFU for your pharmaceutical clean area, you can visitAili Industrial FFU fan filter unit to learn about the complete machine configuration, you can also refer toStainless steel FFU understands the structural characteristics of stainless steel boxes, or contact Aili Industrial to obtain selection support for pharmaceutical projects.
in conclusion
When pharmaceutical FFU cooperates with cleaning and disinfection, it is necessary to confirm the suitability of the cleaning and disinfection medium, box materials, seals, filters and electrical components in advance. Stainless steel boxes still need to check the condition of seals, fasteners and electrical parts. After the material and structure are confirmed, the FFU should also be confirmed to resume normal operation through post-cleaning verification.
Aili Industrial has complete production capabilities in FFU complete machines and pharmaceutical industry supporting equipment, and can provide corresponding configurations according to the cleaning and disinfection conditions of pharmaceutical projects. If you need to know more about FFU selection for pharmaceutical clean areas, you can visitAili Industrial FFU fan filter unit , you are also welcome to contact Aili Industrial for project support.
