Take A Moment To Think About What Is Actually Present In The Air You're Breathing.
Indoor levels of pollutants can be two to five times higher than outdoor levels.*
Sources:
*http://www3.epa.gov/air/basic.html
Infants take 30 to 60 breaths a minute**, two to three times more frequently than adults***.
Sources:
**http://chemm.nlm.nih.gov/pals.htm
***http://www.lung.org/lung-heath-and-diseases/