the earth in a face mask to prevent disease, flu, air pollution, contaminated air, world pollution, pm10, pm2.5.

achievement air bacteria bad checkup city cloud concept consultation contaminated danger day defence defense dirty disease dust earth emission environment environmental face flu gas global health healthy itself mask medical nature patient pharmacy physician planet pm10 pm25 pollutant pollution prevent prevention problem profession professional protect protection protects recovery sad save smog stethoscope success surgeon toxic treatment unhealthy vector virus wear world