1) It's official: research that found infectious SARS-CoV-2 in air samples has been peer-reviewed: "significant environmental contamination in rooms where patients infected with SARS-CoV-2 are housed and cared for, regardless of the degree of symptoms" @Prof_Lowe @nature
2) Window ledges not used by patient also contaminated, likely carried by airflow. Hallway air samples turned up viral aerosols, likely carried by those exiting room. Personal air samplers all positive, despite absence of cough by most patients while sampling took place...
3) Study suggests SARS-CoV-2 environmental contamination around COVID-19 patients is extensive, and hospital procedures should account for the risk of fomite, and potentially airborne, transmission of the virus. https://www.nature.com/articles/s41598-020-69286-3