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This is the material used at the luncheon meeting of the Japanese Aerosol Society (JAAST) held at the Himeji Chamber of Commerce from August 27 to 29 (although it was not displayed on the screen due to system issues). While light scattering particle counters have aspects that are not well-suited for aerosol measurement, they have become essential in the field of contamination control, where in-situ capability, compact size, and ease of use are required. However, they are primarily used in clean rooms, and measuring larger particles in a wider range of environments was previously considered unconventional. We have been using particle plus fine particle counters that can handle high particle concentrations and larger particles in various harsh environments, accumulating various insights. This is a simplified document summarizing some of those insights.

This is the material presented at the manufacturer presentation of the 40th Japanese Aerosol Society.

Clean rooms, of course, as well as machining environments, hospital wards, experimental environments, the Antarctic research vessel "Shirase," and atmospheric observations using drones have all come to be used in various settings.

Particle counters cater to a variety of applications, from high cleanliness environments in clean rooms to large particle detection and air pollution monitoring systems. There are various options available, including detection particle size, flow rate, number of particle size categories, and corresponding concentrations. We have prepared a list of models.

"5nm Detection Adiabatic Expansion Type Pulse Mode CPC" Adopts new technology different from conventional CPCs, eliminating the possibility of false counts (nucleation-free) to the utmost extent, and detecting particles as small as 5nm.