Selektiver Fokus des Menschen in persönlicher Schutzausrüstung und medizinischer Maske beim Schachspielen - Stockfoto & -bild

Young chemist in drugs synthesis concept

Sanitizing worker cleaning up the staircase at the shopping mall with an antiseptic to prevent covid-19 spread. A man in a disinfection suit sprays stairs. Healthcare, quarantine and hygiene concept

Young chemist in drugs synthesis concept

Forensic expert at crime scene doing investigation

Technician for sanitizing rooms equipped with equipment, he is preparing to sanitize a hairdressing salon

Young chemist in drugs synthesis concept