Kemper GmbH (Vreden, Germany) has developed a new air monitoring system called AirWatch, which is able to determine and document the number and weight of nanoparticles and then analyze them with smartphone, tablet or PC and compare them to limit values. A traffic light display visualizes permanently the status of air quality. The system is suited for any workplace in production facilities, warehouses and logistics halls. The system measures fine dust particles in a radius of up to 30m using a laser-powered sensor. An integrated fan draws in ambient air. Data are reported in a trend display for day, week, month or year, allowing manufacturers to analyze concentration of hazardous substances in more detail. AirWatch captures particles in the range of 100 nm up to 16 micrometers. This includes fine dust categories PM2.5 for alveolar common dust (A dust) and PM10 for all inhalable dusts (E dust) as defined by the World Health Organization (WHO). AirWatch also monitors the effectiveness of ventilation measures to check regulations compliance.