Precision Medical Component

See exactly what the Cleanroom Risk Engine delivers. This example shows a complete risk assessment for a medical device component with strict contamination requirements.

Input parameters

Product specifications
Product Medical implant housing
Product area 25 cm²
Exposure time 30 minutes
Critical particle size ≥ 5 µm
Max acceptable particles 3
Monitoring setup
Sensor APMON II
Sample time 4 minutes
Sample area 50 cm²
Industry Medical devices

Analysis results

Overall contamination risk
High

High contamination risk. Immediate attention needed for cleanroom improvement.

Required ISO class

ISO 0

Recommended local air cleanliness
PDRL

0

Le (events)
APMON II Alarm Limit

0 events

Per 4-minute sample (50 cm²)
Detailed calculation results
Parameter Value Description
PDR (particle deposition rate) 2400 particles/m²/h Maximum allowable deposition rate for ≥ 5 µm
PDRL (limit value) 1200 Normalized deposition rate limit
ISO class ISO 5.0 Required local air cleanliness classification
Sensor alarm limit 1 events Maximum events per APMON II sample period
R5 value 2400 Intermediate calculation for ISO class derivation
C5 concentration 80 particles/m³ Equivalent airborne concentration at 5 µm
Recommendations
  • Reduce exposure time to reduce particle deposition rate limit
  • Improve Operational Control Programme's to decrease particle deposition rate:
    • Improve cleaning program (method, execution, frequency)
    • Optimize gowning and entree programme (garment selection, changing procedure)
    • Enhance transfer of goods program
    • Strengthen personnel training
  • Review air handling and circulation system (air change rate and ventilation efficiency)

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