?
κ ȭ ⸦ ø ̴. ̱ NSF(National Sanitation Foundation) ȭǺ 츮 غϴ ξ ư Ѵٴ Դ.
縦 NSF 18% ߵ ϴ ϰ ִٰ . ̱ ڻ Lisa Ackerley ڻ ⺸ 200 Ǿ , װ Ĵ´ٰ ؼ ʴ´ٰ Դ. Ư ֱ ߴ öƽ ϰ ϱ , ̴ ûϱ Ʊ ̴. ̿ üϰ, ä ؼ ߴ.
ı⸦ ֹǰ츮 Դ ı⸦ ô ϴ ֹ . NSF ̷ ֹ 75% ̻ ڶհ Դٰ . Ѱ ϰ ־ ư ϱ ȯ DZ ̴.
2017 ̱ ξ 362 ߰, 82 ߰ߴ. ̿ ǰ ϰ, Ͽ ü ߴ.
ż ִ İ ϰ ð ϰ , ûҸ Ȧ ϴ ִ. ٷ . NSF , ĭ ä ĭ ڶ 36%, Ʊ 14% ߰ߵǾ. ̿ NSF Ϸ翡 ݱ ̶ ߴ. ݵ ֱ ûϰ, ǰ̳ ʵ ߴ.
ó: ǰ ñ , ̴
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