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1. Indoor Air pollution The EPA states that
Levels of the common 11 pollutants are 2-5 times higher inside than outside
Inside cars within traffic can be 18 times higher with pollution
Health risks are magnified because most people spend 70-98% of their time inside
Placed indoor air pollutants on the top of the list of 18 sources of cancer risk
2. 4 most dangerous indoor air pollutants Cigarette smoke http://www.youtube.com/watch?v=gciSp5X40t0
2. Formaldehyde
3. Radon-222 gas
4. and very small and ultra fine particles
3. Formaldehyde inside of your house