In order to determine the best system for continuous monitoring of particles in a cleanroom, you should understand the two types of continuous particle monitoring systems. Real time particle monitoring involves the use of a single particle counter or particle sensor at a specific location. This sensor is dedicated to monitor particles only at this specific location. Every event would be detected and counted. There are no gaps in the particle counting data. Particles are monitored in particles per cubic foot or particles per cubic meter. This system is best used at critical locations where events can happen at any time. Critical or very sensitive operations can be monitored.