This is a special post for quick takes by Ofer. Only they can create top-level comments. Comments here also appear on the Quick Takes page and All Posts page.
[EDIT: for frequent LW readers this is probably old news. TL;DR: people may catch COVID-19 by inhaling tiny droplets that are suspended in the air. Opening windows is good and being outdoors is better. Get informed about masks.]
There seems to be a growing suspicion that many people catch COVID-19 due to inhaling tiny droplets that were released into the air by infected people (even by just talking/breathing). It seems that these tiny droplets can be suspended in the air (or waft through the air) and may accumulate over time. (It's unclear to me how long they can remain in the air for - I've seen hypotheses ranging from a few minutes to 3 hours.)
Therefore, it seems that indoor spaces may pose much greater risk of catching COVID-19 than outdoor spaces, especially if they are poorly ventilated. So consider avoiding shared indoor spaces (especially elevators), keeping windows open when possible, and becoming more informed about masks.
What about protecting your eyes? People who work with pathogens know that accidentally squirting a syringeful into your eye is a very effective way of being infected. I always wear cycling goggles (actually the cheapest safety glasses from a hardware store) on my bicycle to keep out wind, grit, and insects, and since all this I wear them in shops also.
2Viliam
Yes, face mask + glasses is better than face mask alone. But you need glasses that won't mist up, such as the cycling goggles, otherwise you are not going to see much.