…That is, house floor ventilation systems should be arranged well, in order to get cleaner air quality. The results, good ventilation approach based on health is 10-20 percent of floor area house. Airport one of the essential elements to support health. We can not postpone breathe, but if we’re thirsty, we can still be put off drinking for a while. And unfortunately in our homes often find sources of pollution, especially cigarette smoke an…read..