የመጀመሪያው የሚመረጠው የቁሶች ምርጫ እና ጥራት እስከ መደበኛ ደረጃ ድረስ አለመሆኑ ነው; ሁለተኛው ደግሞ በቁስሉ ላይ ያለው የመከላከያ ፊልም በመጓጓዣ ወቅት በሚከሰቱት እጥረቶች ምክንያት የተበላሸ መሆኑ ነው; the third is that the toilet is too humid and the wood is exposed to the humid environment for a long time.
Choyamba ndikuti kusankha ndi kupangira zida zapamwamba sizokwanira; chachiwiri ndikuti filimu yoteteza pamwamba pazinthu zowonongeka chifukwa cha kuphulika panthawi ya mayendedwe; the third is that the toilet is too humid and the wood is exposed to the humid environment for a long time.