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Nicotine can wield its effects on offspring in more ways than from exposures in utero or secondhand smoke: the sperm of mice that ingested nicotine carry epigenetic signatures of that exposure, a study published in PLOS Biology today (October 16) reports

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For starters, it promises to completely filter the air in large rooms every 12.5 minutes, targeting up to 99.97% of tiny airborne particles down to 0.1 microns from wildfire smoke as well as pollen, dust and pet dander

"It could be affecting your social life, your work life or even your tendency to get into accidents." Christopher Wanjek is the author of the books "Bad Medicine" and "Food At Work." His column, Bad Medicine, appears regularly on LiveScience

To remove tough, set-in smoke smells Air out your clothing in the sunshine for several hours or a few days, depending on severity

A full production run of 1,050 master cartons representing 10,500,000 cigarettes can be completed in a matter of days on a modern production line