Du 24 au 26 juin, Bacclean a participé au très attendu CPHI China 2025, qui s'est tenu et conclu avec succès au Shanghai New International Expo Center.
La 26e Conférence nationale sur la construction hospitalière (CHCC2025) s'est tenue en grande pompe au Centre international d'exposition de Wuhan du 24 au 26 mai 2025. Au cours de cette exposition, Bacclean, avec sa force technique professionnelle, ses services de produits de haute qualité et ses solutions innovantes, a pleinement démontré sa compétitivité dans le domaine de l'épuration hospitalière, attirant de nombreux collègues de l'industrie pour échanger des technologies et des solutions dans le domaine de l'épuration médicale.
La 16ème édition de l'ASIA PHARMA EXPO s'est achevée avec succès à l'Asia Pharma Expo au Bangladesh le 13 février 2025. Guangzhou Bacclean a été très heureux d'apparaître avec ses distributeurs ce jour-là.
Separatorless HEPA filters frequently suffer from three major faults during commissioning and long-term operation: PAO leakage detection failure, fluctuating pressure drop, and hot melt adhesive line failure. Fault root causes fall into three categories: manufacturing defects of the filter itself; issues with supporting FFUs, air supply frame, sealing rings; improper storage, transportation, installation and maintenance operations. Similar fault symptoms may stem from entirely different root causes. If the filter quality is directly judged as defective and repeated disassembly is carried out blindly, it will further damage the equipment and delay project commissioning progress. This article sorts out frequent on-site faults, analyzes inducing factors, and provides step-by-step troubleshooting and handling solutions to help engineering, validation and maintenance personnel quickly locate problems.
Gel-seal HEPA filters are frequently evaluated between leading domestic manufacturers and imported brands for high-grade projects such as Grade A/B biopharmaceutical cleanrooms and biosafety laboratories. For a long period, imported gel-seal HEPA filters occupied the major share of high-end cleanroom projects in China. In recent years, however, continuous technical iteration by top domestic purification equipment manufacturers has enabled qualified domestic products to replace imported options in numerous new construction, renovation and expansion projects.
Most failures of high‑temperature resistant HEPA filters fall into three major categories: hot‑state leakage, rapid abnormal rise of pressure differential, and premature aging of sealing components. Root causes can be grouped into three aspects: manufacturing defects of filter materials; defects of matching components such as equipment flanges and gaskets; improper operations during installation, temperature ramping and disinfection & maintenance. Many failures perform perfectly under ambient temperature and only emerge after temperature rise, which are easily misjudged as inherent filter quality defects. This paper sorts out frequent field faults, analyzes root causes, and provides step‑by‑step troubleshooting workflows, helping equipment, validation and maintenance personnel quickly identify and resolve issues.
Fan Filter Units (FFUs) are widely deployed in Class A/B cleanrooms for biopharmaceuticals, lithium electrode workshops, semiconductor, precision optics, clean booths, weighing rooms and other controlled clean environments. Numerous engineering cases reveal that many FFUs deliver good performance in standalone sample tests, yet suffer from frame leakage, uneven air velocity, excessive noise, premature fan failure, early filter clogging and disrupted unidirectional airflow after ceiling installation. Most failures are not caused by poor component quality, but unreasonable selection of housing, fan static pressure matching, sealing method, flow equalization structure and control system in the design phase. Based on abundant FFU project experience from Bacclean, this paper disassembles the complete FFU system, analyzes component selection logic, distinguishes between ordinary industrial conditions and GMP aseptic requirements, sorts out frequent engineering defects and rectification solutions for purification designers, contractors and procurement specialists.
As an essential buffer purification device for personnel entering and exiting cleanrooms, the air shower serves as the primary physical barrier to block external contaminants from entering clean zones. High-velocity clean airflow strips dust, hair and particles attached to personnel garments, minimizing contamination risks brought by human activities to clean workshops. With the accelerated construction of GMP-compliant facilities, lithium new energy, semiconductor and food sterile workshops, conventional basic air showers can no longer meet stringent project requirements. Fully automatic air showers, explosion-proof air showers, cargo air showers and modular air showers are gaining increasing market share. Drawing on abundant cleanroom project cases, Bacclean analyzes the industry status and product evolution trends of air showers, and sorts out selection guidelines and common on-site issues for different industries.
High-temperature resistant HEPA filters cover a wide range of operating conditions, including general industrial ovens, food baking, pharmaceutical dry heat tunnel ovens and freeze dryer hot air circulation. Different scenarios have vastly different requirements for temperature resistance, extractables and verification. Filter selection should not only confirm dimensions and temperature tolerance. It is necessary to distinguish between industrial working conditions and GMP pharmaceutical working conditions, and conduct comprehensive selection combined with temperature, heating & cooling cycles, disinfection conditions and verification requirements. This article sorts out the selection logic of high-temperature resistant HEPA filters by industry from the aspects of temperature resistance grade, structural form, material configuration and verification requirements, and summarizes common selection pitfalls, providing references for engineering, equipment and procurement personnel.
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