The air we breathe can contain particles of ozone, pollution, smoke, chemicals, pet dander, dust mites, mold and other items that can affect our health. Exposure to hazardous pollutants may have an immediate or a long-term effect on healthy individuals and those with heart and lung, and other health issues. Watch local air quality advisories to know when to stay indoors. Manage indoor air pollution by reducing use of harsh cleaning chemicals, using HEPA filters on vacuums and air cleaners, and having regular professional inspections of HVAC systems, fireplaces, chimneys and wood burning stoves. Know what triggers your breathing issues, when to take medications, and when to call your physician.