How does it work? It’s not the t-shirt itself.  The smart tee is just a regular shirt made of 100 percent cotton with a chest pocket. It’s what goes inside the pocket that cleans the air. Kloters calls the patented insert “The Breath.” The company claims it, “absorbs and lowers pollutant molecules such as nitrogen oxides, sulfur oxides and Benzene C6H6 (a highly toxic carcinogen). It can also neutralize odors.”

The Breath is branded as “an energy free system which needs nor electrical nor fossil energy source to purify the air, a passive technology that perfectly fits with the social and energy politics of the new millennium.”

The price starts at about $58. The Breath insert should be replaced once a year.