Freshen is a natural desiccant and deodoriser all in one. It is a combination of charcoal, recycled ash and diatomaceous earth. Recycled ash and charcoal help it remove odour. You can place Freshen in your running shoes, bathroom, laundry or anywhere in your house where you wish to help reduce unwanted odours or reduce moisture. It is a best seller in Japan and feedback from those who have purchased it has been positive in that they came and bought more.