SAO NAM là đại lý chuyên trách mảng Life Science của Particle Measuring Systems tại Việt Nam và là đơn vị phân phối độc quyền các giải pháp MiniCapt® và BioCapt® tại thị trường Việt Nam.

Khách hàng mua sản phẩm đúng kênh được hỗ trợ từ lựa chọn cấu hình, cung cấp chính hãng, lắp đặt, qualification và đào tạo đến hiệu chuẩn, bảo trì, kiểm tra và xử lý kỹ thuật; đồng thời có đầu mối phối hợp với chuyên gia Hãng PMS khi ứng dụng yêu cầu đánh giá chuyên sâu.

Năm sai lầm phổ biến khi triển khai giám sát vi sinh phòng sạch gồm: chọn lưu lượng theo thói quen, đặt vị trí lấy mẫu không đại diện, xem nhẹ data integrity, thiếu quản lý hiệu chuẩn – bảo trì và bỏ sót khí nén/khí công nghệ. SAO NAM Life Sciences phân phối độc quyền MiniCapt® và BioCapt® tại Việt Nam, đồng hành từ tư vấn cấu hình đến hỗ trợ kỹ thuật trong suốt vòng đời sử dụng.

Reliable cleanroom microbial monitoring is a fundamental element of environmental monitoring and contamination control in pharmaceutical, biotechnology, vaccine and sterile manufacturing facilities. However, an active microbial air sampling program does not become effective simply because a compliant sampler has been purchased. The quality and interpretability of the data depend on how sampling locations, flow rates, sampling duration, data handling, calibration and utility monitoring are designed within the site’s Contamination Control Strategy (CCS).

This article reviews five recurring implementation mistakes that can weaken a viable environmental monitoring program. The objective is not to prescribe one universal configuration, but to show why a risk-based, application-specific and lifecycle-oriented approach is essential when implementing microbial air sampling in pharmaceutical cleanrooms.

A higher flow rate can collect the required air volume more quickly, while a lower flow rate may be preferable where minimizing airflow disturbance is important. Selecting 25, 50 or 100 L/min solely because it is familiar may overlook the relationship between total sample volume, sampling time, local airflow, collection efficiency and the position of the sampling head. Flow rate selection should therefore be justified for each application using process knowledge, airflow visualization studies, the monitoring objective and qualification data.

A sampler positioned in an easy-to-access corner may simplify operator activity but fail to represent the microbiological risk near exposed product, critical interventions or aseptic filling operations. Sampling locations should be established through Quality Risk Management, smoke studies, process observation, intervention mapping and historical environmental monitoring data. For isolators, RABS and filling lines, the impactor location and mechanical integration should be evaluated together with potential effects on first air and operator access.

A CFU result alone is not enough to demonstrate a controlled monitoring process. The site should be able to identify who performed the sampling, when and where it occurred, which recipe and air volume were used, which instrument generated the record and how the data were reviewed. Inconsistent location names, manual transcription and fragmented records increase the risk of error and make deviation investigations more difficult. Standardized electronic records and appropriate user access controls can support better traceability and more reliable trending.

Airflow is a critical operating parameter for active microbial air samplers. Calibration, preventive maintenance, battery condition, accessories, software configuration and instrument status should be managed throughout the equipment lifecycle. A site should define service intervals based on risk, manufacturer recommendations and its quality system, while also establishing how to assess the potential impact of an out-of-tolerance condition on previously generated environmental monitoring data.

Compressed air, nitrogen and other process gases may contact product or product-contact surfaces. Assuming that filtered gas is automatically microbiologically controlled can leave a gap in the CCS. A suitable compressed gas microbial monitoring program should consider gas type, pressure, point-of-use location, pressure reduction, sampling volume, monitoring frequency and acceptance criteria. The selected sampling configuration must be assessed for the actual gas and operating conditions.