【Anion Air Purifier】Heepulor Anion Fridge Dedicated Deodorizer only takes one day to remove the refrigerator odor.( TIP:INVALID ? It is recommended to use continuously for 7 days to achieve better deodorization effect. 【SAFE ENOUGH】The Oxygen Anion generator can be stored in the refrigerator for a long time, but Oxygen Anion automatically returns to oxygen after 20 minutes. Keeping it in the refrigerator is safe enough. 【Multipurpose Deodorizer】Heepulor 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 fresh. 【Perfect for Refrigerator Deodorization】As a refrigerator deodorizer, unlike baking soda and bamboo charcoal bags which only absorb smells, the ozone machine circulates active oxygen to the far corners of your fridge quickly and effectively. Rather than simply absorbing odors, it actively eliminates them. 【Easy to Operate】Mode 1:Deep deodorization(Hold the "Start" button for 3 seconds). Mode 2:Freshness preservation and deodorization (Click the button once under the deep deodorization mode). The packaging contains operating instructions. 【IMPORTANT REMINDER】When the device is turned on and running, there will 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. 【MINI and Durable】Mode 1 (battery life 10 days) and Mode 2(battery life 30 days). It weighs only 0.24lbs (110g) with a dimension of 4.7” x 1.4” x 1.1”. Mini USB refrigerator deodorizer continuously maintains a good smell, keeps your food fresh, and extends your products’ shelf life. Now you can go shopping once a week without worry. No consumables and no filters – Zero waste and reusable! It’s better than the charcoals, baking soda, and deodorizers that must be thrown out after a few weeks. Handy, Compact Size - Suitable for home and travel, this portable odor eliminator comes in a lightweight, compact size.