QVA - Model AD - Aerosol Diluters - Broucher

When using a particle counter for filter integrity testing, filters and filter systems must be challenged with an excess of six million particles per cubic foot of air (2.1x108 per cubic meter). Many particle counters begin to experience significant coincidence counting errors (counting two or more small particles as one larger particle) as particle concentrations approach 100,000 particles per cubic foot and greater. It is necessary to know the filter aerosol challenge concentration in order to properly quantify defects. Thus a reliable aerosol dilution device is required.