1. Shakar iskar da ke cikin ɗakin feshi domin kiyaye yanayin aiki na ɗakin feshi, ya kamata a sarrafa saurin iska a cikin kewayon (0.25 ~ 1) m/s bisa ga tanadin dokar Tsaron Ma'aikata da Lafiya. Shakar iskar da ke cikin ɗakin feshi gabaɗaya tana da babban iska, yawan tururin mai narkewa yana da ƙasa sosai (ƙaramin ƙarfinsa yana cikin kewayon 10-3% ~ 2 × 10-'%). Bugu da ƙari, shakar iskar kuma tana ɗauke da wani ɓangare na hazo mai fenti da aka samar ta hanyar feshi.
Girman wannan ƙurar (digon hazo mai lacquer) yana da kusan (20 ~ 200) μm ko makamancin haka, babu wata babbar iska da ke tashi daga nesa, kuma tana haifar da haɗarin jama'a a kusa, amma kuma tana zama cikas ga maganin sharar gida, dole ne a kula da waɗannan.
2. Aikin iskar shaye-shaye ta ɗakin busar da iska a cikin ɗakin shine yin murfin da ke cikin fenti, busarwa ko busarwa da tilas kafin, don haka wani ɓangare na mai narkewa a cikin fim ɗin ya yi laushi da kuma samar da kyakkyawan fim, gabaɗaya shine faɗaɗa tsarin ɗakin fenti, a cikin wannan hayakin yana ɗauke da tururin mai narkewa kawai, kuma kusan babu feshi fenti.
3. Shaye-shaye daga ɗakin busarwa Iskar gas da aka fitar daga ɗakin busarwa, gami da hayaki daga tsarin fenti da tsarin mai. Na farko ya ƙunshi ragowar mai a cikin fim ɗin rufewa wanda ba a ƙafe shi a cikin ɗakin feshi da ɗakin busarwa ba, wani ɓangare na abubuwan da ke canzawa kamar plasticizer ko resin monomer, samfuran rushewar zafi, samfuran amsawa. Ana amfani da na ƙarshe a matsayin tushen zafi don iskar gas mai ƙonewa. Abubuwan da ke cikinsa sun bambanta da mai, kamar ƙona mai mai nauyi, ɗauke da babban adadin sulfur akan samar da iskar sulfite, lokacin da zafin wutar tanderu ya yi ƙasa, daidaitawar aiki da rashin kulawa da kulawa, saboda rashin cikakken ƙonewa da hayaki. Amfani da man fetur na gas, kodayake farashin mai yana da yawa kuma iskar gas mai ƙonewa a bayyane yake, akwai ƙarancin farashin kayan aiki, sauƙin kulawa, fa'idodi masu inganci na zafi. Inda ake amfani da wutar lantarki da tururi azaman tushen zafi a cikin ɗakin busarwa, ba a la'akari da iskar gas mai fitarwa daga tsarin mai ba.
