Purggo is a car air eco-purifier that is filled with 100-percent all-natural moso bamboo charcoal, activated and carbonized between 1,110 degrees F and 1300 degrees F, according to the company. It is designed to be fragrance-free and allergen-free, and it is all-natural and non-toxic. Purggo adsorbs and eliminates the odor in the vehicle, rather than masking it. The pores and cavities work together to act like a big sponge. As air passes through the pores, odor particles are trapped on the surfaces inside, which purifies the air in vehicle.