Ke kahua noi: Hoʻohana maʻamau ka Model 5-29 Centrifugal Blower i ka lawe ʻana i ka palaoa a i ʻole ka pauka, a me ka hoʻohana nui ʻia i ka lawe ʻana i ka ea a i ʻole ke kinoea ʻē aʻe i hiki ʻole ke hoʻā ʻole iā ia iho, ʻaʻohe mea paʻa.ʻAʻole ʻoi aku ka mahana ma mua o 50 ℃ (ʻaʻole ʻoi aku ma mua o 80 ℃ o ka wela kiʻekiʻe loa).ʻAʻole iʻoi aku ka lepo a i ʻole ka palaoa i loko o ka medium ma mua o 150mg/m3.