How do the best dehumidifiers work?


If you live in a humid part of the world, you would surely know the importance of dry and warm air. Well, living in a sticky ambiance feels really disgusting. And for this reason, dehumidifiers are so useful.

Not only do they remove the unwanted water vapor from your ambiance, but they also blow warm and cozy air for a more comfortable environment to live in. But have you ever, in your life wondered, how do they do it? Well, if not, you might want to know it now, and if yes, go ahead. So, let’s find out how do the best dehumidifiers work?


Humid air intake

Firstly, when you switch on your dehumidifier, it starts slurping in the sticky and humid air from your surroundings. For this purpose, the unit uses a motor-driven fan that creates a vacuum effect over the air surrounding the unit and in turn, sucks it in.

Water Removal

The boiling point (temperature) of water is of course, less than the other gases present in the ambient air. Therefore, through the process called fractional distillation, water vapors of the air separate out. 

In this process, the refrigerant of the dehumidifier unit cools down the sticky air to a much lower temperature, such that the water constituted in the air gets condensed into its liquid form, but the other constituents do not.

This water then travels to the water reservoir which you can drain directly or using a drain hose.

Reheating of air

After the air loses its entire water component in the refrigerant, this cool air is brought to the heat recovery system which reheats the air so as to give you a warm and cozy air to breathe.

Cleaning of the residue

The air left as a residue then has to pass through the air filters of the dehumidifier. These filters trap in the dirt, dust, mold, mildew, and other microbial particles that could survive the process till now. 

These dirt particles if left untreated are capable of triggering allergies and irritations. And the germs and other microbes can even lead to frequent diseases and infections. 

Auto Shut-Off

The sensors located at the almost top of the water tank quickly sense when the drainage bucket fills completely and shut-off the unit automatically to avoid unwanted spills.

Final Words

So this was everything related to the mechanism of dehumidifiers. We hope that you were able to find this article helpful. 


Paul Petersen