ISO 14644 Cleanroom Class Limit Calculator
Cleanroom & contamination control engineering: Calculate maximum airborne particulate concentration limits ($C_n$) per ISO 14644-1:2015, minimum grid sampling points ($N_L$), and design Air Changes per Hour (ACH).
Cleanroom Standard & Geometry
Airflow Design Mode
Classification Limits & HVAC Flow
Max Concentration Limit C_n:
--
particles / m³ (at selected size)
Design Air Changes / Hour:
--
ACH (recommended)
Total Airflow:
--
m³ / hour (CFM)
Sample Locations:
--
points (ISO 14644-1)
FS 209E Class:
--
equivalent
Standard Concentration Matrix (particles / m³)
| Size | Limit (/m³) | Limit (/ft³) |
|---|---|---|
| ≥ 0.1 μm | -- | -- |
| ≥ 0.5 μm | -- | -- |
| ≥ 5.0 μm | -- | -- |
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