Pūwero hau wehewehe hinu o waho. Hoahoa wehewehe hinu o waho: kāore e hiahiatia he wetewete mō te tiaki.

✅Wehewehe hinu o waho: Whakakapinga tātari tere me te watea, ka penapena nui i te wā tiaki me ngā utu mahi.

✅Pūmau, ā, he roa: Ka whakamahia te hangarau Tiamana, ka tutuki ai te tika tātari tae atu ki te 3ppm, ka tiakina pai ai te wae matua.

✅Teitei te whai huatanga me te penapena pūngao: Ka whakarerekē te pūnaha whakahaere atamai i te nui o te hauātanga ina hiahiatia, ka whakaiti i te whakapaunga pūngao.

✅Mahi iti-haruru: He hoahoa ahurei, ka taea te iti o te haruru mahi ki raro iho i te 62 decibels.