have proven the air inside your home is 7 to 10 times (occasionally 50 times) more polluted than the air outside. We build four walls and a roof and trap our air in an environment that quickly becomes stagnate and polluted. The smells emitted
when we cook pollute our air just as much as pet odors. Even our body is source of household dust from the natural process of shedding skin. We wake up day after day with the same stale, dirty air, over and over.