The HAZ-DUST EPAM-7500 wireless portable PM monitor with touch screen operation provides simultaneous real-time measurement and display of PM10, PM2.5, and PM1.0, respirable, or TSP, temperature and relative humidity, and gravimetric sampling. Ultrasonic wind speed and direction measurement is available. Use the EPAM-7500 for roadside air quality studies, fenceline monitoring, hot spot location, IAQ surveys, and particle mitigation studies.