A Guide to Portable Dehumidifiers

The United States Environmental Protection Agency says that the way to control indoor mold growth is to control moisture. That's just one reason to invest in a portable dehumidifier. If you want to protect your walls, building foundations, furniture, electronics or even the strings on your piano, a portable dehumidifier can be just what you need.

Portable dehumidifiers work on the same physical principles as those of full-size units: cold air holds less water than warm air. All dehumidifiers draw in humid air from the room, cool the air so that the water falls into a reservoir bucket, warms the dried air back up to room temperature, and releases the dried air back out into the room.

The size of the fan, along with the power of the fan motor, determines how large a room your unit can dehumidify. Most dehumidifiers use blade-type fans, but some of the larger units boast the more efficient, squirrel cage-type fans, similar to those used in furnaces.

The advantages to portable units over full-size models are numerous. First and foremost, portables use less energy ? sometimes as little as half the energy of a full-size unit. This will save you a bundle on your next electric bill. Second, they are easier to move. Most people can pick up a 29-pound portable unit and move it from room to room, depending on where you need it most.

Best of all, portable dehumidifiers are almost as thorough as larger units. The square footage of air dehumidification, as well as the size of the reservoir, average as high as some of the mid-range full-size machines.

One downside to portables is that, because the components are packed more tightly, the compressor will tend to frost up and spread to other components. As a result, some manufacturers have included a frost warning light. When it goes off, you will know that the compressor needs to be defrosted.

Dehumidifiers Info provides detailed information about basement, home, small, portable, and closet dehumidifiers, plus dehumidifier reviews, and more. Dehumidifiers Info is the sister site of Humidifiers Web.

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President-elect Barack Obama speaks about the economy, Thursday, Jan. 8, 2009, at George Mason University in Fairfax, Va. (AP Photo/Charles Dharapak)AP - President-elect Barack Obama's proposed tax cuts ran into opposition Thursday from senators in his own party who said they wouldn't do much to stimulate the economy or create jobs. Senators from both parties agreed that Congress should do something to stimulate the economy. But Democratic senators emerging from a private meeting of the Senate Finance Committee criticized business and individual tax cuts in Obama's stimulus plan.



Vice President Dick Cheney pauses during an interview with the Associated Press at the White House, Thursday, Jan. 8, 2009 in Washington. (AP Photo/Ron Edmonds)AP - Vice President Dick Cheney says that his boss, President George W. Bush, has no need to apologize to the American people for not doing more to head off the financial calamity, saying no one saw the crisis coming.



Palestinian relatives of a father and four of his sons from the Khalout family who were killed in an Israeli army operation, react in the family house during their funeral in Beit Lahiya in the northern Gaza Strip, Thursday, Jan. 8, 2009. The U.N. halted deliveries to the Gaza Strip on Thursday after gunfire from an Israeli tank killed an aid truck driver, and the international Red Cross said it would restrict activities after one of its drivers was injured in a similar incident. (AP Photo/Khalil Hamra)AP - The U.N. suspended aid shipments in the Gaza Strip on Thursday and the Red Cross restricted its convoys after their trucks came under Israeli fire. The threat of a wider conflict arose when militants in Lebanon fired two rockets into northern Israel.



President-elect Barack Obama speaks about the economy at George Mason University in Fairfax, Va.,  Thursday, Jan. 8, 2009. (AP Photo/Charles Dharapak)AP - President-elect Barack Obama implored Congress to "act boldly and act now" on Thursday to fix an economy growing perilously weaker, and leading lawmakers set an informal goal of mid-February for enacting tax cuts and government spending that could cost as much as $1 trillion.



In this Jan. 5, 2009 file photo, disgraced financier Bernard Madoff leaves U.S. District Court in Manhattan after a bail hearing in New York. (AP Photo/Kathy Willens, File)AP - The many Bernard Madoff investors who withdrew money from their accounts over the years are now wrestling with an ethical and legal quandary.



U.S. Senate appointee Roland Burris is sworn in before testifying during the Illinois House Impeachment Committee hearing at the Illinois State Capitol Thursday, Jan. 8, 2009, in Springfield, Ill. (AP Photo/Seth Perlman)AP - U.S. Senate appointee Roland Burris said Thursday he's never been involved in an improper deal in his two decades in government and didn't strike any agreement to become embattled Gov. Rod Blagojevich's pick for the U.S. Senate.



AP - It is perhaps the most intriguing unsolved mystery from the gaudy gangland career of John Gotti: Whatever happened to the neighbor who accidentally ran over and killed the mobster's 12-year-old son — and then vanished?

In this image released by ABC, actor Tom Cruise, third left, poses with the hosts of the ABC daytime show 'The View,' from left, Whoopi Goldberg, Barbara Walters, Joy Behar, Sherri Shepherd and Elisabeth Hasselbeck during a taping, Thursday, Jan. 8, 2009, at ABC Studios in New York. The interview will air on Friday, Jan. 9. (AP Photo/ABC, Ida Mae Astute)AP - "Horrific" is how Tom Cruise described the sudden death of the son of his friend, John Travolta. Cruise struggled to maintain his composure as he spoke on "The View" about last week's death of 16-year-old Jett Travolta. "John just adored him, both of his children," Cruise said haltingly. "... It's something that I don't have the words for."



AP - Police in upstate New York say a man has been sprinkling roofing nails on the driveways of people he didn't like to cause flat tires for two years. Stony Point police Lt. Peter Quinn said Michael Delisio was arrested Tuesday after an officer staking out one victim's home saw nails being thrown from Delisio's car.

In this April 27, 2008 file photo, Atlanta Braves' John Smoltz delivers a pitch in the second inning against the New York Mets in their baseball game at Shea Stadium in New York. Smoltz has reached a preliminary agreement on a contract with the Boston Red Sox, a stunning end to his long career with the Atlanta Braves. The deal was expected to be finalized later Thursday Jan. 8, 2009. (AP Photo/Kathy Willens, File)AP - After more than two decades with the Atlanta Braves, John Smoltz is ready to finish his stellar career wearing a different uniform. In a stunning end to one of baseball's longest runs, Smoltz reached a preliminary agreement Thursday on a $5.5 million, one-year contract with the Boston Red Sox after failing to work out a deal to return for his 22nd season with the Braves.



President-elect Barack Obama at a news conference in Chicago, December 7, 2008. (Jeff Haynes/Reuters)Reuters - President-elect Barack Obama warned on Thursday that the U.S. economy could stay mired in recession for years without bold action and he urged lawmakers to work day and night to pass a massive stimulus plan.



People taking the Long Island Foreclosure Tour arrive at a foreclosed home for sale in New Hyde Park, New York in this May 17, 2008 file photo. Citigroup could soon agree to principles that would let troubled borrowers save their homes through bankruptcy, sources familiar with the talks said on Thursday, while industry groups are easing their opposition to the plan. (Shannon Stapleton/Reuters)Reuters - Financial giant Citigroup Inc has agreed to support a controversial rewrite of U.S. bankruptcy law aimed at helping troubled mortgage borrowers avoid foreclosure, lawmakers said on Thursday.



A Lebanese child shouts slogans during a protest organized by a leftist group in front of the Egyptian embassy in Beirut, against Israel's attacks on Gaza January 7, 2009. (Ali Hashisho/Reuters)Reuters - Recovery teams ventured into battlegrounds of the Gaza Strip on Thursday to gather bodies from the rubble, and Hamas officials said the Palestinian toll in Israel's 13 day-old offensive rose to 765 dead.



A customer shops at a Wal-Mart Supercenter in Rogers, Arkansas, June 5, 2008. (Jessica Rinaldi/Reuters)Reuters - Wal-Mart Stores Inc and other top U.S. retailers delivered disappointing December same-store sales and profit warnings on Thursday, sparking fresh recession concerns that hit stock and currency markets.



Bernard Madoff is escorted from Federal Court in New York January 5, 2009. (Lucas Jackson/Reuters)Reuters - Accused swindler Bernard Madoff had signed checks totaling more than $173 million in his office desk ready to be sent out before his arrest, U.S. prosecutors said in court papers on Thursday asking a judge to jail him.



A man works near a pressure gauge at a district heating plant in Skopje January 8, 2009. (Ognen Teofilovski/Reuters)Reuters - Moscow has agreed to deployment of international monitors to oversee the transit of Russian gas to EU states via Ukraine, clearing the way for the resumption of European gas supplies, the Czech EU presidency said.



Reuters - The U.S. nuclear deterrent that kept a tense peace during the Cold War is in danger of losing credibility among allied nations that look to the United States for security, a Pentagon panel said on Thursday.

People walk past the Bank of England in central London, January 8, 2009. (Rob Bodman/Reuters)Reuters - Economic weakness in Europe worsened and U.S. jobless rolls swelled as disappointing sales from Wal-Mart, the world's largest retailer, and other retailers on Thursday showed that consumers are still wary about opening up their pocketbooks in an uncertain economy.



A wounded Palestinian is carried into Gaza City's al-Shifa hospital. The main UN Palestinian relief agency halted work in Gaza on Thursday after a driver was killed and the death toll from Israel's war on Hamas rose to more than 760 after dozens of bodies were found in the rubble.(AFP/Yassr Saymeh)AFP - A UN relief agency halted work in Gaza and protested to Israel on Thursday after an aid worker was killed, while the war death toll rose past 760 after dozens of bodies were found in rubble during a pause in bombing.



A man warms himself near a stove in a bar in the town of Belovo, Bulgaria. EU-sponsored talks collapsed Thursday between Russia and Ukraine on resolving a gas dispute that has cut supplies to Europe in the midst of a bitterly cold winter, with Moscow blamed for the failure.(AFP/Boryana Katsarova)AFP - EU-sponsored talks collapsed Thursday between Russia and Ukraine on resolving a gas dispute that has cut supplies to Europe in the midst of a bitterly cold winter, with Moscow blamed for the failure.




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