they have some good info on politifact.com basically they said that any covering on face is better but not like surgical masks. and it stays on surfaces for a while but not in air so if u get into an empty elevator it shouldbe fine. i would guess standing in the back so noone breathes on you might be helpful.but the president is now suggesting we should all try to cover our faces with a mask, scarf or any piece of cloth.
i think it's actually a good measure to prevent the spread of droplets in the air. because when people talk, chew, sing or even breathe, some small droplets of saliva is released from our mouths.
do you guys think the coronavirus could linger inside the elevator? i live in an apartment building in nyc and i'm so terrified to step outside my apartment let alone use the elevator.