Risk of COVID-19 Transmissionbr Inside vs. Outside: Explained With stay-at-home orders loosening acrossbr the country, it’s important to remember COVID-19br transmission can and will still happen. Here are a few things you should knowbr about transmission risks inside vs. outsidebr and how you can continue to stay safe. According to professor William Schaffnerbr of Vanderbilt University, enclosed spaces thatbr lack proper ventilation pose the most risk. William Schaffner,br via Huffpost In comparison, larger spaces br like supermarkets are safer, br but poor ventilation and airbr conditioning can still pose a risk. “Heavy” respiratory droplets are able to floatbr in the air, meaning any sort of system that moves airbr currents can potentially circulate the virus. Experts say the best precaution againstbr this is to open windows and make surebr your system’s filtration is in top shape. Maintaining a proper distance of 6 to 8 feet br is also important, as the closer you are to someone, br the more likely transmission is. The risk of transmission is the lowestbr outdoors, as it offers more space forbr separation and a more natural airflow. A study published in br ‘The Journal of Infectious Diseases’ br also shows that ultraviolet rays br may help prevent transmission. The study found that 90 percent of coronavirusbr particles were deactivated by UV rays frombr sunlight within 10 minutes of exposure. Still, it’s important to avoid groupbr activities when outdoors and continuebr practicing proper social distancing.