Filin aikace-aikacen: Za a iya amfani da Model 4-72 Centrifugal Blower don iskar gida a masana'anta na yau da kullun ko a cikin babban gini.B4-72 Yana isar da iska ko wani iskar gas wanda bazai iya kunna kansa ba, ba zai cutar da jikin mutum ba ko kuma baya lalata karafa.Za'a iya amfani da Model B4-72 Centrifugal Blower don samun iskar gas wanda yake da ƙonewa kuma mai ƙarfi.Ba a yarda da wani abu mai cin abinci a cikin gas.Kurar ko hatsi ba ta wuce 150mg/m3 ba.Gas zafin jiki bai wuce 80 ℃ ba.
Ayyukan, kayan gyara da girman shigarwa na Model B4-72 abin hurawa iri ɗaya ne da Model 4-72, kuma ana iya zaɓa bisa ga littafin samfurin sa.Wannan tsarin mai busawa daidai yake da Model 4-72.Motar ya kamata ya zaɓi jerin YB daidai da jerin Y a cikin ginshiƙi.Model F4-72 abin hurawa yana ɗaukar bakin karfe don isar da iskar gas, kuma aikin sa da shigarwa iri ɗaya ne da Model 4-72.