For many smokers, the act of lighting up comes with a nagging sense of guilt, especially around non-smokers, children, or in shared living spaces. The well-documented dangers of secondhand smoke are undeniable, linked to respiratory infections, asthma, and much more serious long-term health problems in those who inhale it. https://eduardomduk81481.jasperwiki.com/7200348/clearing_the_air_can_personal_air_filters_protect_others_from_secondhand_smoke