![Why better ventilation is key to limiting COVID-19 spread on campus | CU Boulder Today | University of Colorado Boulder Why better ventilation is key to limiting COVID-19 spread on campus | CU Boulder Today | University of Colorado Boulder](https://www.colorado.edu/today/sites/default/files/styles/large/public/article-image/covid_hvac_filter_install_ipf_pc0104.jpg?itok=r9JoxX-E)
Why better ventilation is key to limiting COVID-19 spread on campus | CU Boulder Today | University of Colorado Boulder
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