Nga Paerewa me ngā Pūtake Whakahaere
Kua ake te whakatutukitanga o te kōpū kiwihi 304 i ngā ture higiene, nā te mea ka waihanga he iti noa iho ngā mahi whakariterite. Ko te matawhāiti kore e whakaheke ana i te whaiherehere ārai pūtaiao, koia nei te take i te kore whakapuaki i ngā kai rereake, mēnā ka kitea he whakapuaki i roto i te whenua, ka noho tonu ia hei mea higiene. Ko te haratau o te pūtahi e whakamau ana i te kore whakapuaki i te lime scale, ā, ka noho tino whakaritorito ki te kore whakapā mai i ngā wehiwehi kākāriki, kākāriki, rānei, ngā tae kai. Ka noho tonu te pūtahi o te kōpū kiwihi i ana āhuatanga āwhero ārai pūtaiao, kāore i te hikitia he whakahaere atawhai matua, nā te mea ka whakamana te āhuatanga o te cromium ki te ārai i te whaiherehere ārai pūtaiao. Mēnā ka hiahia koe ki te whakahaere matua, ka whai koe i te whakatika atawhai iti i runga i te pure i te wai iti, ka noho kore rawa te hiahia ki te whakamahi i ngā whakahaere pure tūpuhi kino. Ko te pūmanawa o te kōpū kiwihi ki te taea i ngā waehu paihikara matua, ka whakaae koe ki te whakahaere paihikara i te wai kaiwareware, kāore i te hoko i te mate. Nā ēnei āhuatanga ka noho tino whakarite ki ngā whare whakahaere e hiahia ana ki te whakahaere i te higiene kiwihi, ahakoa te iti o ngā wā mō te whakariterite.