I have had asthma for over 34 years and developed heart disease 4 years ago. Outside air quality affects my ability to breathe. I'm sensitive to pollution. I do not like all the legal things allowed that contribute to poor outdoor air quality such as burning debris and old vehicles with dirty exhaust fumes. Mold in the air from too much rain and dampness is also hard on my lungs, but I suppose this goes with living in South Carolina. Outside air affects breathing. I do not like all the legal things allowed.that makes poor air outside. Burning debris outside. Old vehicles with poor exhaust. Mold in air from too much rain and dampness Is hard, But I suppose this goes with living in SC? Linda