For many smokers, the act of lighting up comes with a nagging sense of guilt, especially around non-smokers, children, or perhaps in shared areas. The well-documented perils associated with secondhand smoke are undeniable, related to respiratory infections, asthma, and even more serious long-term health issues in those who inhale it. https://graph.org/Clearing-the-Air-Can-Personal-Air-Filters-Protect-Others-from-Secondhand-Smoke-11-04-2