Umsebenzi ophambili wabalandeli be-explosion-proof ayikuthinteli i-fan ngokwayo ekuqhumeni, kodwa endaweni yokukhusela ngokuchasene nokudubula kothuli kwiindawo zemveliso. Kumashishini athile, inkqubo yemveliso ivelisa uthuli oluvuthayo kunye nokuqhuma kunye nezixhobo, ezifana nentsimbi kunye nothuli lwamalahle. Ukulawula la masuntswana ayingozi, Iinkqubo zokukhupha umoya zidla ngokusetyenziselwa ukutsalwa nokuqokelelwa.
Kwiimeko ezinjalo, ukwenzeka kwengxabano kunye neentlantsi kwifeni kungadala umngcipheko omkhulu. Kungoko, imfuno eyimfuneko yeefeni ezikhusela ukudubula. Aba balandeli bafumana unyango olukhethekileyo, ebonisa izinto ezahlukeneyo kwiifeni eziqhelekileyo, ukuqinisekisa ukhuseleko olwandisiweyo kwezi ndawo zinomngcipheko omkhulu.