Nā runga i te hanganga pūnaha mō ngā wāhi whakawehi sodium hydroxide, e hanga ana ngā kōpū whakawehi sodium hydroxide hei āwhina i te hīkoi haumaru o te rūma rite tonu ki te purengia, he momo purengia nui. E tirotiro ana ngā rau o ngā kōpū ki te taea i ngā uara purengia o te rūma, ka whakamahia noa atu ko te 316 inox tahuri rānei ko te tahuhu fluoropolymer - lined steel. Nā ngā kōpū nei e hanga ana ngā āhuatanga haumaru matua, e kite ana i ngā take tupeka, ngā puapua tūrangi rahi rānei, me ngā tūranga whakamutu ahi. Ko ia anō hoki ngā takoto haumaru me ngā whakatakotoranga hei whakataha i ngā tupeka i te wā hīkoi. Me rite tonu ngā kōpū whakawehi sodium hydroxide ki ngā ture hīkoi tatakihia hei whakamutu i te kaiwhakaawe taiao me te tiaki i te haumaru o ngā kaiarahi me ngā kaihīkoi i tēnei rūma whakararu, ā, hei āwhina i tana whakamahi i waenga i ngā mahi ā-poroiti.