His research involves a wide range of instrument design, laboratory method development, field measurement, numerical simulation, and data integration. Dr. Wang has been involved in the development and use of a multitude of instruments for characterizing aerosol properties. He is a coinventor of the nanoparticle aerodynamic lenses for efficiently delivering nanoparticles into aerosol mass spectrometers and the TSI DustTrak DRX Aerosol Monitor for real-time size segregated aerosol mass concentration measurement. He led the design of the DRI Portable Emissions Measurement System (PEMS) that has been used for characterizing gases and particles from vehicle exhaust, stack emissions, biomass burning, and biomass-derived syngas. Dr. Wang also led the design of the DRI Model 2015 Multiwavelength Thermal/Optical Carbon Analyzer. Dr. Wang is the principal investigator of ongoing projects to study dust exposure in underground coal mines, organic species partitioning between gas and particle phases from incinerator emissions, brake and tire wear emissions, and physical, chemical, and optical properties of smoke from burning of spacecraft relevant materials. He recently completed a study to measure vehicle fleet emissions in roadway tunnels and assess emission changes over the past decades. He conducted real-world multi-pollutant emission characterization from mining fleet, industrial stacks, and fugitive dust sources in the Athabasca Oil Sands Region in Alberta, Canada. He participated in recent projects to study the impact of visibility, air quality, and atmospheric deposition of particles generated from wildfires and prescribed burns in the Lake Tahoe Basin, the spatial distribution of residential wood combustion emissions in Reno and Sparks, NV, and the impact of the Los Angeles World Airports (LAX) operations on ultrafine particle concentrations in surrounding community. Dr. Wang is an active participant in several scientific organizations. He conducts peer reviews for scientific publications and funding agencies. He served as co-chair and chair of the Instrumentation Working Group of the American Association of Aerosol Research (AAAR) annual conferences and chair of the Young Investigators Committee of the AAAR. Dr. Wang has been granted three patents and published three book chapter and 70+ peer-reviewed journal articles.