Odiechieng’ moro, jatend ng’iewo gikmoko e kambi moro ma loso yath ma ne ni Shenzhen, noluonga kendo nowacho niya, ‘Adwaro filta mag HEPA ma atiyogo e ot ma atiyogo maler’. Ka ne apenje ni en gred mane, nowacho niya, ‘HEPA kende, ma en gred ma pile.’ Chandruok en ni, onge ‘kido ma pile’ mar HEPA — nitie rang’iny mopogore opogore ma dirom abiriyo e bwo rang’iny mar piny mangima, ma chakore 99.95% nyaka 99.999995% mar tich maber, kendo pogruok mantie e kindgi nyalo nyiso ka be ot mari maler okalo e nonro mar EU GMP kata ok okalo.