Air Particle Counters for Cleanroom and Environmental Monitoring

The MET ONE 3400+ Series sets a new standard for pharmaceutical cleanroom classification and environmental monitoring. Designed for simplicity, compliance, and efficiency, it transforms complex SOPs into interactive, on-screen workflows—directly on the device. No paper checklists, no separate software, just smarter sampling while supporting ISO 14644 and EU GMP Annex 1 requirements.

Compact counter for cleanrooms to provide accurate data in particle monitoring systems.

• Particle size: 0.3µm or 0.5µm
• Flow rate: 0.1cfm or 1.0cfm
• Built-in flow sensor
• ISO 21501 accuracy

Scalable on-line particle monitoring solutions based on open architecture communications that integrate easily with your preferred systems. 

• Suite of air particle counters
• Integration software
• Full ISO 21501 compliance
• 21 CFR Part 11 compliance
• On-site service option

Designed for cleanroom monitoring in regulated and semi-regulated production environments including the following:

• Food and beverage filling lines
• Hospital labs
• Precision parts manufacturing

High accuracy non-viable particle monitoring for cGMP/FDA compliance.

• Particle size: 0.3µm or 0.5µm
• Flow rate: 0.1cfm or 1.0cfm
• Built-in flow sensor
• ISO 21501 accuracy

Pumped counters for pharma, semiconductor, hard disk drive & flat panel display cleanrooms.

• Particle size: 0.5µm
• Flow rate: 1.0 cfm
• Built-in flow sensor
• ISO 21501 accuracy