Fim ɗin BOPA mai babban shinge na EHA wanda Changsu ya haɓaka yana da ƙarin ƙamshi mai ban sha'awa da kaddarorin shinge na oxygen [EHAp＜2cc/㎡·day·atm (23℃ 50% RH)], wanda zai iya rage haɗarin gurɓataccen ƙwayar cuta kuma ana iya adana shi. na tsawon lokaci.Tsayawa asali dandano da sabon dandano cuku.Bugu da kari, EHA na iya kula da juriya mai kyau da huda a yanayin zafi mai daskarewa, wanda zai iya rage haɗarin karyewar jaka yadda ya kamata ta haifar da tasiri yayin jigilar kayayyaki.