Dec. 22 (UPI) --A commercially available, hand-held particle counter can be used to measure concentrations of COVID-19-causing virus particles in the air in indoor spaces, according to a study ...

An analysis of counting-efficiency effects in non-volumetric particle counters explains discrepancies across channels.

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 ...

The LiQuilaz ® II optical liquid particle counter from Particle Measuring Systems is a volumetric monitor that has been specifically developed with a range of sizing sensitivities as low as 0.2 µm. It ...