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