A dehumidifier takes out the moisture of the air by sucking the moist air on one side and let this air move through ice cold tubes. This allows the moisture to collect on the tubes and then drip into a bucket or a tube thereby pushing the dry air from the other side. This dry air then mixes with the moist air and then making it a little more drier which is again pulled in to another unit for making it drier and drier again.
Generally, a dehumidifier is available in different sizes and there are some standard sizes of the items except the coastal areas.
Up to 400 square feet: 25 or 30 pint
Up to 800 square feet: 40 pint
Up to 1000 square feet: 50 pint
Up to 1300 square feet: 65 pint
In case of the coastal areas the square foot of the place will be reduced much at 50% and all these figures are based on 8′ high ceiling. So, if the height is 10′ and then you can add 25% more of the footage and 12′ will add more than 50%.
There are lots of things to depend on and most importantly, the temperature of your room will determine the minimum humidity level that you will be able to achieve. In most of the dehumidifiers the air is released at around 30 percent humidity level. While at the same time if the degree increased to 70 degrees then there is a possibility of increasing the humidity to 35 to 40 percent. When the temperature goes below 70 degrees and then it reaches 50 then there can be rise of 60 percent. The heat may rise the temperature as you will be able to elevate it towards the ceiling. This will enable to have further lowering of the temperature level.
Humidity level can be reduced because of the other factors as well like the size of the area of dehumidifying, the geographical area of the country where you reside and construction of the room. In different dehumidifiers there are certain levels of the pints of water that can be removed and that can be removed in 24 hours. Generally, the points are described with 30 pint, 50 pint or 65 pint.
Jason Whitney writes about choosing the perfect dehumidifier for your home at http://www.dehumidifierexperts.net/

