1. Hei pupuri i te taiao mahi o te rūma rehu, me whakahaere te tere o te hauhautanga i roto i te awhe (0.25 ~ 1) m/s e ai ki ngā whakaritenga o te ture Haumaru me te Hauora Mahi. He nui te rōrahi hau o te putanga o te rūma rehu whānui, he iti rawa te kukū o te kohu whakarewa (ko tōna wāhanga rōrahi kei roto i te awhe 10-3% ~ 2×10-'%). Hei tāpiri, kei roto hoki i te putanga o te rūma rehu tētahi wāhanga o te kohu peita i puta mai i te rehu.
Ko te rahi o te matūriki o tēnei puehu (ngā pata kohu rēki) he tata ki te (20 ~ 200) μm pea, kāore he hau nui e rere ana i tawhiti, ā, ka puta he tūponotanga tūmatanui tata, engari ka waiho hei arai ki te tukatuka hau para, me aro atu ki ēnei.
2. Ko te mahi a te whakamaroke hau i roto i te rūma, ko te whakamaroke i te paninga peita, te whakamaroke rānei i mua i te whakamaroke, kia maeneene ai te whakarewa i roto i te kiriata, kia pai ai te hanga kiriata, ko te tikanga he toronga o te tukanga peita rūma. Ko te kohu whakarewa anake kei roto i tēnei putanga, ā, kāore he kohu peita rehu.
3. Putanga mai i te rūma whakamaroke Ka tukuna te hau putanga mai i te rūma whakamaroke, tae atu ki te putanga mai i te pūnaha peita me te pūnaha wahie. Kei roto i te mea tuatahi te toenga whakarewa i roto i te kiriata paninga kāore i mimiti i roto i te rūma rehu me te rūma whakamaroke, he wāhanga o ngā wāhanga pūngāwerewere pērā i te plasticizer, te resin monomer rānei, ngā hua pirau wera, ngā hua tauhohenga. Ka whakamahia te mea whakamutunga hei pūtake wera mō ngā hau putanga tahu wahie. Ka rerekē tōna hanganga i runga i te wahie, pērā i te tahu hinu taumaha, kei roto he nui te whanariki i runga i te hanga hau whanariki, ina iti te pāmahana o te oumu, te whakatikatika mahi me te tiaki me te whakahaere ngoikore, nā te tahunga kāore i oti me te paowa. Ahakoa he nui te utu wahie me te mārama o te hau putanga tahu, he iti te utu taputapu, he ngāwari te tiaki, he pai te pai o te wera. I te wā e whakamahia ana te hiko me te mamaoa hei pūtake wera i roto i te rūma whakamaroke, kāore e whakaarohia ngā hau putanga mai i te pūnaha wahie.
