Particle counters

Particle counters are instruments that measure the number and size of airborne or liquid-borne particles in a sampled volume, most working by drawing a known flow past a laser beam and sizing each particle from the light it scatters. They are the core measurement tool for cleanroom classification, environmental monitoring and contamination control in pharmaceutical, semiconductor and electronics production. On Questpair, 269 laboratory particle counters are listed from 16 verified suppliers and distributors across 7 countries, covering new, used and refurbished units. Of those listings, 99 percent are used. Prices run from EUR 59 to EUR 63.295.