•   Two-wavelength cavity ringdown photoacoustic spectrometer (CRD-PAS)
  •   Single Particle Soot Photometer (SP2)
  •   Cloud Condensation Nuclei (CCN) Counter
  •   CCN Counter with in situ droplet sizing
  •   Aerosol chemical speciation monitor (ACSM; joint with Qi Zhang)
  •   3-wavelength photoacoustic aerosol spectrometer (PASS-3)
  •   Scanning mobility particle sizer (SMPS)
  •   Scanning electrical mobility sizer (SEMS)
  •   Aerosol particle sizer (APS)
  •   Oxidation flowtube
  •   Ozone monitor
  •   NOx monitor
  •   SO2 monitor
  •   Miniature marine aerosol reference tank (miniMART)