close-up profile side view portrait of his he nice serious expert workman wearing gas mask sars ncov n-cov-2 first aid

background biohazard chemical clinic color coronavirus covid19 disinfectant doctor epidemic equipment face gas gear glasses goggles gown green guy hazmat healthcare hood hospital infection job male man mask medic medicine ncov pandemic pastel ppe profession profile protective respirator respiratory safety sanitize sars side suit uniform work worker young