By Sharperimage.com

Headwaters, Inc. High Performance Personal Air Purifier

The TSA-approved High Performance Personal Air Purifier uses electrostatic purification to create a 3-foot zone of cleaner air around you. Worn on the shirt or around the neck, it produces a constant stream of healthy negative ions that bond with airborne contaminants (viruses, bacteria, dust, etc.), causing them to fall to the ground so you don't breathe them in. Best of all, there are no filters to clean or replace. Includes metal travel case.