Malo ouma amkati angayambitse mutu, zilonda zapakhosi, zilonda za maso, kukwiya kwa khungu, komanso kusapeza bwino kwa lens, mulingo woyenera wa chinyezi cham'nyumba umakhala pakati pa 40-60% chinyezi wachibale (% RH), chithunzi chovomerezedwa ndi HEVAC, CIBSE, BSRIA. ndi BRE.The Health and Safety Ex...
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