The 8530 inhalable particulate matter analyzer is powered by a battery, records data, and uses a light scattering laser photometer to provide real-time readings of aerosol mass concentration. The 8530 inhalable particulate analyzer uses a sheath gas system to isolate aerosols in the optical chamber, maintain optical cleanliness, and improve reliability and low maintenance costs. This instrument can be used in clean offices, as well as in harsh industrial workshops, construction sites, environmental monitoring, and other outdoor environments. The 8530 inhalable particulate analyzer can measure aerosols in dust, smoke, thick smoke, and thin mist.