Fashewar Shenhai-Hujja
Lallai, Babban rashin ƙarfi na man fetur yana nufin cewa lokacin da maida hankalinsa ya kai ga takamaiman kofa, fallasa zuwa buɗe wuta na iya haifar da ƙonewa ko ma fashewa.
Rashin iskar oxygen a cikin yanayi shine kawai yanayin da man fetur ba zai kunna ba. Akasin haka, abubuwan da suka wuce iyakar fashewa suna hana fashewa, amma a gaban oxygen, kunna wuta ba makawa.