Michelle Dennis, QC Microbiology Application Specialist with MilliporeSigma and member of the PDA Week 2026 planning ...

This article addresses a common misunderstanding among some users regarding non-volumetric particle counters. Some users believe that dividing particle counts by the counting efficiency (CE) at the ...

When using particle counters, many operators are unaware that during conventional manifold sampling, the monitor can undercount the ambient particle concentration. The manifold pump creates an ...