Zmęczony naukowiec w masce ochronnej stojący w laboratorium. zdjęcie z przestrzenią do kopiowania. - Zdjęcie stockowe & obraz

Businessman wearing a white shirt with tie dark blue, close up at the blue medical mask for protection coronavirus with copy space. Concept protects people around the world from COVID-19, new-normal.

Close up photo of sick young man with medical protective face mask illustrates Covid 19 disease isolated on white. Covid-19 outbreak, flu contamination and healthcare concept

Closeup portrait of man wearing protective mask against virus and pollution

Closeup of a doctor with green mouth guard

Portrait of young man wearing a medical mask at white background. Person is happy because he is finally healthy. Coronavirus concept. Respiratory protection.

Portrait of a sick man wearing medical mask with infection text at blue background. Coronavirus concept. Protect your health banner.

Confident leader in protective mask looking at camera in working environment