professional technical man in prevention suit sprays sterilising solution by electrical spray machine on wood floor and white

back background biohazard cable chemical clean corona coronavirus covid covid19 danger dicut disease disinfect disinfectant disinfection electrical epidemic equipment facemask floor flu hall health human infection influenza isolated light line machine male man mask pandemic person prevention professional protection protective quarantine removal remover sanitize side solution spotlight spray sprays sterilising studio suit technical thailand uniform virus white wood