Out air pollution is not the only pollution problem we must consider.
Indoor air is often more pollution then outdoor air.Additionally, we
spend a great deal of time indoor.
Indoor pollution includes carbon monoxide and nitrogon oxides
from cooking, heating water, and space heaters.Additionally,
photocopying machines and refrigerators can leak ozone.Other pollution
include asbestos, volatile organic, volatile organic from house hold
cleaning product, cigar smoke and radon gas.