1. Control rel. Humidity: 10-80% Tested: 10% up to > 90% 2. Temperature regulation of air flow: 20 to 35°C ° Tested: -10°C to 50°C 3. Expansion of inflow velocity 4 cm/s up to 2m/s 4. Integration of U-SMPS expand the size range to 10 nm - 40 μm 5. Easy use of different test aerosols, e.g. A2, A4, NaCl, KCl, DEHS 6. Influence of rel. humidity to dust holding capacity with ISO A2 Fine 7. Influence of rel. humidity to fractional efficiency with NaCl 8. Further possible influences of different dust cake compositions to filter efficiency.
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