The airflow system of the fully automated microbial sample processing system is a core component of its biosafety design, aimed at preventing sample contamination of the environment and protecting the samples themselves:
Internal Circulation: The air inside the system circulates within a closed loop, continuously purified by High-Efficiency Particulate Air (HEPA) filters to remove airborne particles and microorganisms. This provides a highly clean and stable internal environment for sample processing, significantly reducing the risk of sample contamination from external sources during operation.
Unidirectional Airflow: The airflow direction is meticulously designed, typically flowing from areas of higher cleanliness (e.g., the work surface) towards areas of relatively lower cleanliness, and finally to the exhaust outlet. This directional flow effectively prevents aerosol dispersion, confines potential contamination to localized areas and directs it towards the processing system, thereby avoiding cross-contamination.
Sterilization by HEPA Filtration of Exhaust Air: All air intended to be exhausted into the laboratory environment must undergo final treatment through a high-efficiency filter (typically an H14-grade HEPA filter). This filter can capture over 99.995% of particles, ensuring that the exhausted air is free of microorganisms and safeguarding laboratory personnel and the environment.
In summary, this airflow system establishes a safe and reliable enclosed processing space through the combination of "internal circulation to maintain cleanliness, unidirectional airflow to prevent dispersion, and mandatory sterilization before exhaust."
NIDEC Diaphragm Pump Model for the airflow system in fully automated microbial sample processing systems: 00H220R200
- Operating Voltage: 12V / 24V
- Gas Flow Rate: 4.0 L/min (Min.)
- Maximum Pressure: 250 kPa (Min.)
- Vacuum Level: -75 kPa (Max.)
- Weight: 370 g
