Fresh Air

The fresh air system provides abundant oxygen inside the room, keeps the bacteria and dust with a diameter larger than 0.3μm outdoors, also discharges the excess carbon dioxide, organic volatiles, smoke and odors out of the room, and keeps the indoor environment as clean as the natural environment.

Isolate the outdoor noise
The indoor noise is reduced to a low value due to the closed windows
Oxygen-enriched and fresh
In a clean and oxygen-enriched environment like nature, you are free of pollutants and bacteria interference, as well as the sick, tired and weak feeling, but feel comfortable and pleasant.

The temperature recovery rate can reach 96.5% through the NILAN heat recovery system, keeping most of the energies indoors, so that the house can not only breathe but also save energy.