Editing Cigarette (section)

=== Second-hand smoke ===
[[Passive smoking|Second-hand smoke]] is a mixture of smoke from the burning end of a cigarette and the smoke exhaled from the lungs of smokers. It is involuntarily inhaled, lingers in the air for hours after cigarettes have been extinguished, and can cause a wide range of adverse health effects, including cancer, [[respiratory tract infection|respiratory infections]], and [[asthma]].<ref name="ALASecondhandSmokeFactSheet">{{cite web|url=http://www.lungusa.org/site/pp.asp?c=dvLUK9O0E&b=35422#one |title=Secondhand Smoke |date=June 2007 |publisher=American Lung Association |access-date=May 6, 2012 |archive-url=https://web.archive.org/web/20091016220328/http://www.lungusa.org/site/pp.asp?c=dvLUK9O0E&b=35422 |archive-date=October 16, 2009 }}</ref> Nonsmokers who are exposed to second-hand smoke at home or work increase their heart disease risk by 25–30% and their lung cancer risk by 20–30%. Second-hand smoke has been estimated to cause 38,000 deaths per year, of which 3,400 are deaths from lung cancer in nonsmokers.<ref>{{cite web |url=http://www.tobaccofreefloridanewsroom.com/?cat=6 |title=Centers for Disease Control & Prevention Fact Sheets |publisher=[[Tobacco Free Florida]] |access-date=January 2, 2013 |archive-date=December 2, 2008 |archive-url=https://web.archive.org/web/20081202074323/http://www.tobaccofreefloridanewsroom.com/?cat=6 |url-status=live }}</ref> Sudden infant death syndrome, ear infections, respiratory infections, and asthma attacks can occur in children who are exposed to second-hand smoke.<ref name="Secondhand Smoke">{{cite web |url=http://www.cancer.org/Cancer/CancerCauses/TobaccoCancer/secondhand-smoke |title=Secondhand Smoke |publisher=Cancer.org |access-date=March 25, 2012 |archive-date=January 7, 2017 |archive-url=https://web.archive.org/web/20170107025355/http://www.cancer.org/cancer/cancercauses/tobaccocancer/secondhand-smoke |url-status=live }}</ref><ref name="NCI">{{cite web |url=http://www.cancer.gov/cancertopics/factsheet/Tobacco/ETS |title=Secondhand Smoke and Cancer - National Cancer Institute |publisher=Cancer.gov |date=August 18, 2005 |access-date=March 25, 2012 |archive-date=March 25, 2012 |archive-url=https://web.archive.org/web/20120325183133/http://cancer.gov/cancertopics/factsheet/Tobacco/ETS |url-status=live }}</ref><ref name="Smoking and Tobacco">{{cite web |url=https://www.cdc.gov/tobacco/data_statistics/fact_sheets/secondhand_smoke/general_facts/index.htm |title=CDC - Fact Sheet - Secondhand Smoke Facts - Smoking & Tobacco Use |publisher=Cdc.gov |access-date=March 25, 2012 |archive-date=August 19, 2022 |archive-url=https://web.archive.org/web/20220819034536/https://www.cdc.gov/tobacco/data_statistics/fact_sheets/secondhand_smoke/general_facts/index.htm |url-status=live }}</ref> Scientific evidence shows that no level of exposure to second-hand smoke is safe.<ref name="Secondhand Smoke"/><ref name="NCI"/>