Hydroxyethyl Cellulose (HEC) ndi ether yogwiritsidwa ntchito kwambiri yomwe imagwira ntchito yofunika kwambiri pakukweza magwiridwe antchito a zipangizo zomangira, sopo, ndi zinthu zina zamafakitale. Nkhaniyi ikufotokoza za makhalidwe ofunikira, ubwino, ndi ntchito zosiyanasiyana za HEC, ndikugogomezera kufunika kwake pakukweza kukhuthala, kusunga madzi, komanso kukhazikika kwa zinthu zonse.