An Introduction to Air Purifiers

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An Introduction to Air Purifiers

An Introduction to Air Purifiers

Air purifiers have been around in various forms since the 1940s, when the first HEPA filter was designed to protect workers from airborne nuclear material. Since then, air purifiers have been used in hospitals, work sites, and homes to protect against viruses, mold, bacteria, pollen, pet dander, tobacco smoke, dust mites, and a great number of industrial and household chemicals. The people who stand the most to gain from air purifiers are those with allergies, asthma, and other respiratory ailments.

But everybody can benefit from having cleaner air in the home. The Environmental Protection Agency lists indoor air pollution among the top five environmental risks to public health. In fact, the inside of your home could well contain two to one hundred times more air pollutants than an outdoor urban environment.

Air purifier value varies widely. You can spend upwards of $1600 for the best air purifiers known to man, or you can spend as little as $70 for a good car unit. You can also spend an arm and a leg on junk if you're not careful. One thing to keep in mind when buying an air purifier is unit-to-filter value. If your unit uses a HEPA filter, find out how much it costs to replace the filter. You may end up spending thousands on the filter alone. The question is, what kind of a machine do you want?

Home air purifiers use a number of technological approaches to cleaning your air so you can breathe more easily. They use HEPA (High Efficiency Particulate Air) filters; electrostatic filters, ion generators, ozone generators, ultraviolet light, and other methods to get rid of both large and miniscule particles. Some operate by drawing in air via a fan, cleaning the air, and re-releasing it. Others work by actually sending out "purifying agents" throughout the room.

Today you have two basic choices for home air purifiers: room air purifiers, and whole house purifiers. Generally speaking, room purifiers are better for air-cleaning efficiency and cost.

Air Purifiers Info provides detailed information on home, ionic, ozone, and HEPA air purifiers, as well as reviews of the best air purifiers on the market today. Air Purifiers Info is the sister site of Air Filters Web.

In The News:

Yahoo! News: Top Stories

Obama OKs modest tax changes after seeking ideas (AP)

AP - Pushed by fellow Democrats, President-elect Barack Obama agreed to modest changes in his proposed tax cuts on Friday after inviting lawmakers to "just show me" ideas for fixing an economy shedding jobs at an alarming rate. Democratic congressional officials said that Obama aides came under pressure in closed-door talks to jettison or significantly alter a proposed tax credit for creating jobs.

Ill. House impeaches governor, who vows to fight (AP)

AP - Gov. Rod Blagojevich was impeached Friday by Illinois lawmakers furious that he turned state government into a "freak show," setting the stage for an unprecedented trial in the state Senate that could get him thrown out of office.

Israel and Hamas ignore UN call for cease-fire (AP)

AP - Israeli jets and ground troops hammered at Hamas targets in the Gaza Strip and Islamic militants fired barrages of rockets at southern Israeli cities Friday, ignoring a U.N. resolution calling for an immediate cease-fire after two weeks of combat.

5 people shot after Chicago high school ball game (AP)

AP - At least five people were shot Friday as spectators left a crowded basketball game at a high school on the city's South Side, scattering panicked students.

Citigroup director Robert Rubin resigns as adviser (AP)

AP - Citigroup board member Robert Rubin, who has drawn heavy criticism for his role at the embattled bank, has resigned as a senior adviser.

Pastor in gay scandal: I'm back from 'wilderness' (AP)

AP - Speaking out two years after being embroiled in a gay sex scandal, former evangelical pastor Ted Haggard said Friday his sexual identity is complex and can't be put into "stereotypical boxes," but that his relationship with his wife is stronger than ever.

Texas death row inmate pulls out eye, eats it (AP)

AP - A Texas death row inmate with a history of mental problems pulled out his only good eye and told authorities he ate it. Andre Thomas, 25, was arrested for the fatal stabbings of his estranged wife, their young son and her 13-month-old daughter in March 2004. Their hearts also had been ripped out. He was convicted and condemned for the infant's death.

Rare 'dinky' bird migrates to US for first time (AP)

AP - Birders with binoculars and cameras are flocking to a remote state park in search of a small yellow-chested bird that apparently crossed the U.S. border for the first time from its high-mountain habitat to the south.

Patrick Swayze checks into hospital with pneumonia (AP)

AP - Patrick Swayze has checked himself into the hospital for observation after contracting pneumonia, A&E President Abbe Raven announced Friday at a meeting of the Television Critics Association. Swayze was scheduled to appear to discuss his upcoming drama "The Beast."

Stimulant exemptions in baseball on the rise (AP)

AP - Baseball authorized nearly 8 percent of its players to use drugs for ADHD last season, which allowed them to take otherwise banned stimulants. A total of 106 exemptions for banned drugs were given to major leaguers claiming attention deficit hyperactivity disorder from the end of the 2007 season until the end of the 2008 season, according to a report released Friday by the sport's independent drug-testing administrator.

Citi, Morgan Stanley in brokerage talks; Rubin quits (Reuters)

Reuters - Citigroup Inc is in advanced talks to sell its Smith Barney brokerage unit to Morgan Stanley, a person familiar with the matter said on Friday, in a move that would further dismantle the financial supermarket that has been bailed out by the U.S. government.

Illinois House votes to impeach Gov. Blagojevich (Reuters)

Reuters - The Illinois House of Representatives impeached Gov. Rod Blagojevich on Friday for abuse of power, including a charge that he tried to sell President-elect Barack Obama's former U.S. Senate seat.

Israel, Hamas press on with Gaza war (Reuters)

Reuters - Israel pressed on with a punishing Gaza offensive and Hamas sent more rocket salvoes into southern Israeli towns in a two-week-old war that continued to defy international efforts to stop it.

Obama team, Rep. Frank eye bailout fund overhaul (Reuters)

Reuters - President-elect Barack Obama and a key Democratic lawmaker revealed plans on Friday to overhaul the government's $700 billion financial rescue fund as a way to aid struggling homeowners and speed the flow of credit.

Salmonella outbreak linked to peanut butter (Reuters)

Reuters - Minnesota health officials issued a product alert for peanut butter on Friday after finding a jar that was contaminated with a strain of salmonella linked to an outbreak across the United States.

Jobless rate at 16-year high as payrolls plunge (Reuters)

Reuters - The unemployment rate surged to the highest in nearly 16 years last month as a deepening year-long recession forced companies to axe more than half a million jobs, government data showed on Friday.

Supreme court to decide voting rights law challenge (Reuters)

Reuters - The U.S. Supreme Court said on Friday it would consider a challenge to a central provision of the 44-year-old voting rights law aimed at preventing states and local governments from making it harder for minorities to vote.

Bank industry slams lawmaker-Citi mortgage deal (Reuters)

Reuters - A top bank industry group said on Friday that it opposes an agreement between Citigroup Inc and Democratic senators that would rewrite U.S. bankruptcy law to help troubled mortgage borrowers avoid foreclosure, saying it could make home loans more expensive.

Gaza conflict set to enter third week as ceasefire appeal ignored (AFP)

AFP - Israel's offensive against Hamas in the Gaza Strip was set to enter its third week on Saturday, with both sides brushing off a UN appeal to halt devastating attacks that have claimed over 800 lives.

Somali pirates say they have released Saudi supertanker (AFP)

AFP - Somali pirates said Friday they had freed a Saudi-owned supertanker, whose capture nearly two months ago caused panic in international shipping and spurred the world into tougher anti-piracy action.

An Introduction to Air Purifiers

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