Beauty of Tatami - Air purification

Tatami has a characteristic to absorb a nitrogen dioxide.
In the air, a chemical substance to call a nitrogen dioxide mainly due to exhaust gas of a car is included, and it gives bad influence to the respiratory system of the human body.

From the experiment by department of engineering Nishimura laboratory at Tokyo University, tatami facing has the highest rate of absorption of nitrogen dioxide among building material, and the effect is maintained even if it becomes old.

In addition, on the tatami which used an active carbon for tatami bed, there is a characteristic that adsorption rate is high of the formaldehyde which is an atmospheric toxic substance in the air and it is also one of the causative substances of sick house syndrome.