ʻO nā wahi i hoʻomehana air-Heated
ʻO kahi Dowygen Downgen Dewar kahi pahu kūikawā i hoʻohanaʻia e kūʻai a lawe i ka oxygen wai. ʻO ka hua'ōlelo "Dewar" maʻamau e pili ana i kahi pahu i hoʻolālāʻia a iʻole nā pahu i hoʻohana pinepineʻia i loko o nā kahua a me nāʻoihanaʻenehana. Hana pinepineʻia nā mea hoʻonani o Oxygen i nā hana kūikawā a iʻole nā lako e hōʻoia ai i ka mālama palekana a me ka halihali o cryogen wai o cryogen.
ʻO ka wai wai o ka oxygen kahi kūlana i loko o kahi o ka oxygen e hoʻokaeʻia ma lalo o kona wahi e kau ai a me ka wai. ʻO ka wai o ka oxygen kahi kiʻekiʻe kiʻekiʻe a me ka mālama mālamaʻana, e hana hou ana i kekahi mau noi. Ua hoʻohana nuiʻia ka wai o ka oxygen i ka lāʻau lapaʻau, nā kahuaʻoihana, e like me nā'ōnaehana o ka haukapila, etc.
ʻO nā meaʻai nui o ka wai o ka wai i loaʻa i nāʻano maʻamau kūikawā a me nā hana palekana e hōʻoia i ka palekana o ka oxygen i ka wā e waiho ai a hoʻohana. Ke hoʻohana nei i kahi hana wai wai o Oxygen, pono e hana pono i nā hana hana kūpono a me nā hana palekana e pale i nā mea i likeʻole e like me ka oxygen leʻano.
