The National Science Foundation (NSF) awarded a $895,091 Project Grant to the Regents of the University of Minnesota, doing business as the Office of Sponsored Projects Administration, to acquire a new shared, multi-user instrument - a dual-reagent chemical ionization mass spectrometer with high-resolution time-of-flight detection. This instrument, an Aerodyne VOCUS 2R CI-TOF, will enable the university to conduct new observations of both concentrations and fluxes of a wide variety of chemical compounds. The research projects enabled by this instrument will enhance the university's ability to study urban air pollution, nitrogen cycling, indoor and outdoor air quality, plant-microbe interactions, and chemical exchange between surfaces and the atmosphere. This instrument will also be used to train a new generation of scientists and enable outreach activities through a partnership with the University of Minnesota Urban Outreach-Engagement Center. The award was made under NSF's Integrative Activities program (CFDA 47.083) and runs from October 1, 2023 through September 30, 2026.