Get the stink out of your shoes and sneakers! Charcoal in the bags not only eliminates odours but it also wicks moisture.
As far as maintenance goes, you'll want to set your Breathe Green bags in the sun for an hour every month. Each bag has a lifespan of two years, at which point the Breathe Green site suggests you dump the charcoal in your garden to “improve soil quality.”
Activated Charcoal: Because the charcoal is so porous, there are an impressive amount of air channels passing through it that can catch and trap allergens and odours.