Multipurpose O3 Generator -- The o3 ozone generator is an intelligent air purifier that converts oxygen into ozone through high-voltage discharge, thereby generating a large amount of active oxygen in a confined space, effectively and safely reducing mixed odors in the air Refrigerator, freezer , shoe cabinets, closets, wardrobes, cars, pet rooms and other closed environments, extend the shelf life of food and reduce food spoilage. Perfect Refrigerator Deodorizer -- As a refrigerator deodorizer, unlike baking soda and bamboo charcoal bags that only absorb odors, the ozone machine circulates active oxygen to the far corners of the refrigerator more quickly and efficiently, not only absorbing odors, but also actively removing them. In just a few hours, you'll notice how clean your refrigerator smells. Economical option - no consumables, no filter changes, reusable The USB Rechargeable Refrigerator Odor Remover is fully automated and maintenance free, saving time and money Stop wasting money on charcoal, baking soda, air filters, and deodorants that have to be thrown away after a few weeks. EASY TO OPERATE -- This refrigerator freshener deodorant is available in a complete and ready-to-use condition. With its single button, the refrigerator cleaner can perform in two modes, including standard (30 days battery life)/strong mode (72 hours battery life). It has a built-in rechargeable battery that lasts up to 30 days on a full charge. COMPACT AND PORTABLE - This Portable Ionic Air Purifier Odor Neutralizer is suitable for home and travel with its compact size and light weight. Weighing only 110g and measuring 125 x 35 x 34mm, this mini air purifier can be moved and placed anywhere, saving more space in your refrigerator or shoe cabinet.