Airmodus develops high-tech nanoparticle counters for scientific and industrial use. The instruments are widely used in air quality research and monitoring in addition to exhaust emissions measurement systems. The company creates new tools for a better understanding of the nanoparticles surrounding us. As the range of nanoparticles starts from 1 nanometer, Arimodus has a unique tool to measure size distribution of smaller than 4 nanometer particles, starting from 1 nanometer.