Re tsepamisitse maikutlo ho nts'etsopele le ho etsa melapo ea extrusion Shanghai ho tloha 1992. Mochini ona oa meltblown nonwoven faric making machine o hlahisa lesela la meltblwon, le nang le lisebelisoa tse ngata tsa khoebo tse kenyeletsang sefahleho sa sefahleho, liaparo tsa ho buoa, liaparo tse sireletsang, le diaper tsa masea joalo-joalo.

Haufinyane tjena, lesela la meltblown le sebelisoa karolong e bohareng ea mask a sireletsang, e le karolo ea bohlokoa ka ho fetisisa ea mantlha ea ho thibela li-particulate le baktheria.