Adsorb harmful gas such as methanal, ammonia, benzene Release far infrared ray Release anion Release microelement Control the reproducing of microorganism Expelling parasite,sterilization,antioxidation Electrostatic shielding,prevent radiation of electromagnetic wave Specification: Item Type:Air Freshener Item Width:13 cm Material Type:bamboo charcoal Special Features:adsorb harmful gas,antioxidatio Item Length:22 cm Color Name:Pink Package include: 1 x air Freshener