Whakamahia te hāora parakore me etahi atu puna hāora hei hāora. I te mea e whakamahia ana te hāora parakore hei mea hāora, ka tino heke te hau kare e mau tonu ana ki roto i te punaha, a ka taea te hangarua te ethylene korekore. Ko te hau tohanga mai i te tihi o te pourewa absorption me wetewetehia hei tango i te waro hauhaa, ka recycled hoki ki te reactor, ki te kore ka nui ake te 15% te papatipu waro, ka tino pa ki te mahi o te whakakorikori.