Pacific Scientific 3313LL Met One Laser Airborne Particle Counter

The Pacific Scientific 3313LL Met One Particle Counter is a laser-based airborne particle counter designed for precise environmental and cleanroom monitoring. This instrument utilizes a photodetector to count particles by detecting light scatter as particles traverse a laser beam within the sampled air stream. Key technical features include:

• Multiple particle size channels accurately measuring sizes at 0.3, 0.5, 1.0, 3.0, 5.0, and 10.0 µm, allowing detailed particle size distribution analysis
• Airflow rate of 1 CFM (cubic feet per minute) ensures statistically significant air sampling volumes critical for contamination control in bioprocessing and molecular diagnostics environments
• Built-in programmability supports sampling intervals, hold times, and alarm thresholds, facilitating automated environmental monitoring protocols essential in biotechnology and pharmaceutical cleanrooms
• Data export via serial connection enables seamless integration with laboratory data acquisition systems or environmental control networks
• Durable stainless steel construction enhances instrument longevity and resistance to corrosion or chemical exposure, suitable for use in harsh or GMP-compliant biomanufacturing facilities

This device is widely adopted in molecular biology and synthetic biology research settings, where stringent airborne particle control supports experimental reproducibility and compliance with regulatory standards. Calibration and maintenance considerations include routine checks of the laser, pump, optics, and replacement filters to maintain accuracy and reliability. The 3313LL is critical for airborne contamination monitoring in biotechnology, biomedical engineering, and clinical diagnostics applications where particle control influences the success of gene editing and bioprocessing workflows.