Pegasor provides unique fine particle sensor products. Our products are based on diffusion charging of particles, technology capable of covering all fine particle monitoring applications. The IAQ is a portable battery operated monitor suitable for indoor use and measuring particles down to 5nm and up to 3 microns. Output is available as particle number (p/cm3), Particle surface area (m2/cm3) or PM2.5 mass concentration (ug/m3