Feature: 1. Multifunctional O3 Deodorant: Refrigerator deodorizer can effectively reduce unpleasant odors in closed environments such as refrigerators, freezers, shoe cabinets, cabinets, cars, pet rooms, etc. It also extends the shelf life of food and keeps it fresh. 2. Ideal for refrigerator deodorization: As a refrigerator deodorizer, unlike baking soda and bamboo charcoal bags that only absorb odors, the ozone machine quickly and efficiently circulates active oxygen to the far corners of the refrigerator. Not only does it absorb odors, it also actively removes them. In just a few hours, you'll notice how clean your refrigerator smells. 3. Economical choice: No consumables, no need to replace the filter, reusable. The USB rechargeable refrigerator deodorizer is fully automatic and maintenance free, saving time and money. 4. Easy to Operate: This refrigerator deodorant is provided in a complete ready-to-use state. With just one button, the refrigerator cleaner works in two modes: standard mode (30 days of battery life) and strong mode (72 hours of battery life). Its built-in battery lasts up to 30 days on a full charge. 5. Convenient and compact size: This portable deodorizer is light and compact in size, suitable for home and travel. It only weighs 110g and measures 14.5*4.3cm/5.7*1.69inch, which means it can be moved anywhere, fit anywhere and save more space in your refrigerator and shoe cabinet.