So they call usually electric and bulky devices which force air through a motor or fan and that deshumidifican the environment, since they condense moisture and send it to a warehouse. They do not control the humidity.
[reveal heading = "% image %..."] The dehumidifiers they are designed to lower the moisture content. These devices moisture often operate under the principle of refrigeration. Devices and moisture absorbent products They include a radiator (tubular) through which passes a compressible fluid. Allowing the fluid to expand, fluid quickly lower the temperature of the pipes. When moist air passes through the pipes, condensation takes place in tubes formed by water dripping on a removable container. Periodically removed and the container is emptied. The dehumidifier is very often forgotten, overflows on the ground and the water evaporates, turning to raise the humidity. [/reveal]