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US7025067B2 - Activated charcoal filter for effectively reducing p-benzosemiquinone from the mainstream cigarette smoke - Google Patents Activated charcoal filter for effectively reducing p-benzosemiquinone from the mainstream cigarette smoke Download PDF Info Publication number US7025067B2 US7025067B2 US10/076,041 US7604102A US7025067B2 US 7025067 B2 US7025067 B2 US 7025067B2 US 7604102 A US7604102 A US 7604102A US 7025067 B2 US7025067 B2 US 7025067B2 Authority US United States Prior art keywords filter mesh size smoke charcoal bsq Prior art date Legal status (The legal status is an assumption and is not a legal conclusion

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Alarmingly, around 60 of these chemicals are proven carcinogens