It happens in the building such as a residence, and there is a complaint which a physical condition defect is accused of, and it is often taken away as this several-years social problem as
Sickhouse syndrome due to the indoor air pollution of the chemical material by mass communication, too.As for the concrete symptom is
This building-like, as for the element is
The material which harmful volatility chemical material is contained to is
Japanese tradition building uses natural lumber, soil. Ventilation is good again.Therefore, it doesn't become
Sickhouse syndrome.