Air ( Vayu ) is a necessary thing for all of us living on this earth. In Vastu air is another important element which is considered before applying it. Air is an element of north-east. Air consists of various gases on earth like oxygen, nitrogen, helium, carbon dioxide etc.
A balanced percentage of different gases, atmospheric pressure and humidity level are important for living beings on this earth. There are important directions for windows and doors in Vastu so as to receive a good amount of air.