8.01.2026
Next-generation active microbial air sampler MAS-100 Sirius®
Andy Zingre
MBV AG

Reference reloaded: MAS-100 Sirius® is the successor of the MAS-100 NT® – the world’s best-selling active air sampler. The agar-based sampler sets a new standard in monitoring microbial air contamination. Engineered to achieve highest precision and to minimize the risk of secondary contamination, it is ideally suited for both non-controlled and controlled environments such as pharmaceutical cleanrooms.

Full process safety
Automated instrument checks inform operators about missing or incorrect components during the measurement and assure fast detection of operational errors. A leak test verifies the proper contact of the perforated lid. Calibration of both flow and timer are traceable, sensor drifts are identified at an early stage thanks to the dual-sensor design of MAS-100 Sirius.

Lower risk of secondary contamination
The seamless stainless steel design makes it easy to clean the instrument. The innovative magnetic lid with a handle helps ensure aseptic operation by keeping the operator’s hands out of the critical measurement zone. The interior of the device head can be actively decontaminated with VHP.

100% data integrity
MAS-100 Sirius includes a complete and tamper-evident audit trail with convenient live filtering. Thanks to the sampling data export via a result barcode or WiFi, data integrity is assured. In case of deviations, errors are logged in the audit trail based on pre-defined sampling error reasons on the display. With the optionally included user management, access can be precisely controlled.

Intuitive and efficient operation
With its lean user interface and simple navigation, the configurable one-button sampler clearly guides users through the process and reduces the risk of operating errors – just as the easy-to-use magnetic lid with handle does. The plate holder can be adjusted for 55 mm and 90 mm agar plates as well as Growth Direct® cassettes without additional tools. On top of that, the measuring time is significantly reduced thanks to the high flow rate of 200 SLPM, to ensure tight schedules can be met.  

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Andy Zingre
MBV AG