So that air can flow ventilation should be made on both sides of the space (walls). The air will move from a hole in one side to the hole on the other side. The second position is ideally opposite wall, so that more air in indoor air are exchanged with new ones. But if not possible, the vent can be placed on the adjacent wall. At least one wall that is directly related to the wind hole to outer space.Lighting in the room should be rooted in natural light. So in addition to healthy can also save energy. No need to turn on the lights in the daytime. Natural light into the room to clean the room once warmed the room to avoid moisture. Therefore in every room should be made of glass windows related to outer space. In determining the magnitude and location of windows, be aware of the direction of the sun. Direct sunlight from the west will make the room very hot. Use the canopy to shade windows windows from direct sunlight.
In designing a healthy home, as far as possible every room has windows and vents associated with outer space, as a source of air and natural light. Windows can be opened will help smooth air circulation especially during the day.
