Ua hoʻokumu ʻia ʻo Shanghai Ailigen Environmental Technology Co., Ltd. i ka makahiki 2017 a he mea kūʻai aku i nā lako hana hoʻomaʻemaʻe hale.I kēia manawa, ua hoʻohana maikaʻi ʻia nā mīkini kahe o kā mākou hui, nā ana kiʻekiʻe o ke kani ultrasonic, nā mika oxygen dissolved a me nā huahana ʻē aʻe i kāna papahana hoʻomaʻemaʻe wai ma Fengzhai Mingsu, Pudong, Shanghai.
