[Safe Enough]The Oxygen Anion generator in our deodorizer can be used safely in the refrigerator for an extended period.Oxygen Anion automatically reverts to oxygen after 20 minutes,ensuring your safety while using it in the fridge. [Anion Air Purifier]Do you often encounter foul,moldy,or pungent odors in your refrigerator?With the Anion Fridge Dedicated Deodorizer, [IMPORTANT REMINDER]When the device is turned on and running, there be a slight sound. Please put it into the refrigerator and close the door as soon as possible. The sound no longer affects your purification of the refrigerator. After a day, the refrigerator no longer had a foul smell. It's like you got a new refrigerator. [Perfect for Refrigerator Deodorization]As a refrigerator deodorizer, unlike baking soda and bamboo charcoal bags which only absorb smells, the machine circulates active oxygen to the far corners of your fridge quickly and effectively. Rather than simply absorbing odors, it actively eliminates them. [Multipurpose Deodorizer] refrigerator deodorizer can effectively reducing unpleasant odors in closed environments like fridges, freezers, shoe cabinets etc. It also prolongs the shelf life of food and keep food .