Conference Speakers
Martin Schmidt
Engineer, Palas GmbH
Tuesday, April 29
8:00 am - 5:00 pm
8:00 am - 5:00 pm
FiltXPO 2025 Posters
Influence of test parameters to the air filter efficiency
Most common test aerosols used in air filtration standards are DEHS, NaCl, KCl and the ISO A2 fine dust (ISO 12103-1). The equipment to measure particle size and concentration up- and downstream of the filter varies. Commonly used are either optical aerosol spectrometers or differential mobility particle analyzers. A newly built dual channel test bench allows a direct comparison of different filters, where one channel is mainly used for DEHS and NaCl/KCl and the other channel for dust loading to avoid contamination by dust residuals.