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![](/files/2024/02/1707403219377_pexels_terry_magallanes_2988860_1.jpg?w=1600&a=t)
Air Pollution Facts and Figures
- Indoor levels of pollutants may be 2 to 5 times - and occasionally more than 100 times - higher than outdoor pollutant levels.
- People spend 90% of time indoors
- Energy-efficient homes trap pollutants
Sources of Indoor Air Pollution
- Mold and mildew
- Ragweed and pollen
- Tobacco smoke
- Pets and dander
- House dust
- Outside air
- Chemicals in products