Asthma Allergy Friendly .
In modern society the increase in respiratory problems like asthma and allergies has grown exponentially. Because the need for energy efficiency, homes today are more and better sealed like a close environment, eventually we accumulate large amounts of contaminants inside our home, this can cause serious health problems.
Indoor levels of air pollutants can be 2-5 times higher, and occasionally 100 times higher, than outdoor levels.
EPA Indoor Environments Division.