Similar to the human skin, under the too dry environment for a long time, the hardwood furniture would lost its moisture and then they begin to shrink, finally there would be lots of crack on the hardwood surface. On the contrary, when the humidity in increasing at home, the hardwood furniture will absorb the enough moisture and then begin to expand and finally recover their original shape.

On the other hands, if there is no air conditioning or humidifier at home, the relative humidity would be high, wooden parts on the furniture would expand because of absorbing the air. For example, sometimes you would find that it is not easy to pull the drawer out. When the relative humidity descend, the furniture will recover their original shape. During this shrinking and expanding process, the service life of furniture would be shortened. Of course, the top quality furniture such as some famous brand furniture will not be affected by these factors, including the quality and solid degree. Therefore if the economic condition allows, it is recommended to you buy famous brand furniture.