Close up of one young Asian man wearing a black surgical face mask and using a mobile phone in subway train during new type Coronavirus Covid-19 pneumonia outbreak and pm 2

surgical mask protective face mask air pollution smog subway mobile phone infectious disease wireless technology technology chinese ethnicity smart phone portable information device korean ethnicity human face film - moving image east asian ethnicity travel safety epidemic japanese ethnicity city life train - vehicle city pneumonia clothing cold and flu men protection 4k resolution telephone illness spreading one person transportation people young adult males only men healthy lifestyle non us film location close-up asian and indian ethnicities one man only social issues coronavirus adult one young man only healthcare and medicine mode of transport young men adults only horizontal guarding human body part covid-19 defending - activity