๐คญThe air in Moscow is so fresh that ecologists advise closing the windows and going to the countryside.
Medical masks, they say, won't help, because these "oil rains" contain benzene and benzopyrene. It's especially recommended that asthmatics, children, and elderly people temporarily leave their comfort zone.
However, no serious risks are expected, it's just that people are advised not to breathe in what's outside. Nothing unusual ๐