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2. Health effects of tobacco - Wikipedia

   en.wikipedia.org/wiki/Health_effects_of_tobacco

   Smoking most commonly leads to diseases affecting the heart and lungs and will commonly affect areas such as hands or feet. First signs of smoking-related health issues often show up as numbness in the extremities, with smoking being a major risk factor for heart attacks, chronic obstructive pulmonary disease (COPD), emphysema, and cancer, particularly lung cancer, cancers of the larynx and ...

3. Indoor air quality - Wikipedia

   en.wikipedia.org/wiki/Indoor_air_quality

   Portable room air cleaners with HEPA filters can be used if ventilation is poor or outside air has high level of PM 2.5. [122] Air filters are used to reduce the amount of dust that reaches the wet coils. [citation needed] Dust can serve as food to grow molds on the wet coils and ducts and can reduce the efficiency of the coils. [citation needed]

4. Air purifier - Wikipedia

   en.wikipedia.org/wiki/Air_purifier

   An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .

5. Smoking’s effects on the immune system can last years ... - AOL

   www.aol.com/smoking-effects-immune-system-last...

   Smoking, the study found, seemed to have long-term epigenetic effects on the immune system’s two major forms of protection: the innate response and the adaptive response.

6. Smoking and Health - Wikipedia

   en.wikipedia.org/wiki/Smoking_and_Health

   The health effects of tobacco had been debated by users, medical experts, and governments alike since its introduction to European culture. [1] Hard evidence for the ill effects of smoking became apparent with the results of several long-term studies conducted in the early to middle twentieth century, such as the epidemiology studies of Richard Doll and pathology studies of Oscar Auerbach.

7. List of smoking bans in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_smoking_bans_in...

   Statewide smoking ban: On October 1, 2005, the Montana Clean Indoor Air Act (MCIAA) went into effect, banning smoking statewide in all enclosed workplaces in Montana including restaurants, though bars were exempt until October 1, 2009; [207] the word "bar" is defined in the Act as also including taverns, night clubs, cocktail lounges, and ...