Environmentally friendly material has the following criteria;
a. non-toxic, before and after use
b. in the manufacturing process does not produce substances harmful to the environment
c. can connect us with nature, in the sense we are getting close to nature as a natural impression of the material (e.g brick reminiscent of soil, wood in the trees)
d. can be obtained easily and close (does not require any fees or process a great move, because it saves fuel energy to move materials to the construction site)
e. materials that can naturally decompose easily
f. etc.
environmentally friendly material according to the above criteria for example, bricks, cement, natural stone, local ceramics, wood, and so forth. Whether or not environmentally friendly material can be measured by these criteria or of one of the criteria only, such as wood that increasingly hard to come by, but when used sparingly and correctly can make us feel closer to nature because it reminds us of the plants.