Mulher jovem vestindo uma máscara protetora de couro preto durante a epidemia de surto da doença de Coronavirus COVID-19. Close up retrato de estúdio em um fundo preto com uma máscara de proteção de uso múltiplo no rosto . - Banco de fotos e imagens

Gas mask for sale as a souvenir on a street in Budapest.

Young woman wearing a protective surgical face mask during the Coronavirus disease (COVID-19) outbreak epidemic. Close up portrait with a multiple use white protection mask on the face.

Customs officer is participating in a training for drugs detection in Sofia's airport.

Young woman wearing a protective surgical face mask during the Coronavirus disease (COVID-19) outbreak epidemic. Close up portrait with a multiple use white protection mask on the face.

Budapest, Hungary - April 30, 2015: An young Hungarian boy with gas mask is driving a two wheel scooter in a central street in Budapest.

Sofia, Bulgaria - December 5, 2015: Volunteers from the Bulgarian Red Cross Youth Organization are participating in a training of saving people from a building during an earthquake.