Microbiology & sterility
Airborne particle counter
Counts and sizes airborne particles, typically at ≥0.5 µm and ≥5.0 µm, by measuring light scattered as each particle passes through a laser beam. Used to classify clean rooms and to monitor non-viable particles in Grades A–D.
- Pharmaceutical
- Biotech
- Medical devices
- Semiconductors
- Hospitals
- Aerospace

PREVENTIVE MAINTENANCE
Maintenance checklist
Each use
- Zero count check with purge filter
- Wipe the casing and probe
Monthly
- Check battery capacity
- Inspect tubing and probe for damage or contamination
Annual
- Calibration of flow rate, sizing, counting efficiency and zero count as per ISO 21501-4
- Replace exhaust filter and service the pump as recommended
SAFETY
Safety precautions
Before you work on the Particle counter
- Class 1 laser product in normal use; do not open the sensor housing.
- Follow cleanroom gowning and transfer procedures.
- Do not connect to toxic or flammable gas lines unless the counter is designed for it.
In LimsPulse · Calibration Management
Keep every Particle counter in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.