By: Rachel Pierce Email
By: Rachel Pierce Email

The New York Times, as well as Newsweek, carry ads for the Venta-Airwasher that claims it's both a humidifier and a purifier.

Consumer Reports' Rico de Paz just checked out two sizes costing $200 and $400.

The devices claim they can trap "even the very finest particles, as small as 10 microns."

"Many of the particles that bother people with respiratory problems like dust and smoke are a lot smaller," said Paz. "Particles that are 10 microns are just too heavy to stay suspended for very long."

Consumer Reports tested the Venta-Airwasher the same way it tests all air purifiers, in a sealed chamber. A measured amount of fine dust is put into the room, followed by cigarette smoke. A particle counter keeps track of the number of particles in the air that are three microns or smaller.

The tests show it's not a good air purifier. How about as a humidifier? The test show the Venta-Airwasher does add moisture but it doesn't have a control to let you set the level of humidity.

"Without the humidity controls, the air can get very moist and eventually cause mold and mildew to grow." said Paz

A regular humidifier costs a lot less. Consumer Reports says get one with a control that lets you set the amount of humidity you want.

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