Petoneer is an odor neutralizer that uses infrared technology to sterilize the air for you and your four-legged friends. The active oxygen decomposition process neutralizes and decomposes odor molecules, inhibits bacterial growth, and keeps the air clean and fresh. Its three-way ventilation design allows active oxygen molecules to be quickly released with the airflow, which improves the range of deodorization. It provides 24-hour normal intermittent operation as the Fresnel infrared (IR) lenses detect when pets enter the space and start the process once they leave. With the built-in 2200mAh lithium battery, it can be used for up to four days on a single charge.