[Greenbuilding] Magic Carpets Suck Out Air Pollutants (TreeHugger)

[Brent Neal]

On Aug 15, 2007, at 11:51, Stephen Collette wrote:

> So the magic carpet sucks out pollutants from the air. Their
> pollutants and others. But where do the pollutants go one asks? Magic
> is surely must be.
>
> Has anyone seen these? It's curious indeed, and if it does work, I'd
> love to know more about it.
>
> http://www.treehugger.com/files/2007/08/carpet_makes_clean_air.php
>
> Stephen


Typically, this is accomplished by using photocatalytic TiO2, an  
inert compound that is used as a white pigment. In the presence of  
ultraviolet light, some kinds of TiO2 will break down organic  
molecules. This is commonly used as a method of odor control, and is  
part of the basis behind the self-cleaning window coatings that made  
some news on WolrdChanging and other places a while back.

B

--
Brent Neal, Ph.D.
http://brentn.freeshell.org
<brentn at gmail.com>