Multifunctional OGenerator Oozone generator is an intelligent air purifier, which can quickly release active oxygen, degrade into harmless oxygen and water, circulate in closed spaces, renew the gas, extend the shelf life of food and reduce food spoilage. The scientific release of active oxygen ions increases the circulation of the overall space, effectively and safely reducing mixed odours in closed environments such as fridges, freezers, shoe cabinets, wardrobes, cars and pet rooms. Effective Fridge Deodoriser and PreserverIt is different from baking soda and bamboo charcoal bags which only absorb odours, with active oxygen O+ negative ions O, a double attack on odour molecules, deep sterilisation and dead-end decomposition of odours. In just a few hours, you will find your fridge smelling fresh and clean.Through negative ionisation, small molecules of water are released, which are easily absorbed by fruits and vegetables to achieve hydration and freshness. Saves Resources and MoneyNot disposable, not consumable, no filters to replace and reusable! The USB fridge deodoriser with built-in rechargeable battery works completely automatically and once fully charged. No maintenance required, saving resources and money! Stop wasting money on charcoal, baking soda and air filters that won't last long before you have to throw them away. Dual Mode, Anti-Freeze Design This fridge deodoriser is supplied in a complete form, ready to use. The whole machine is designed with anti-bacterial and anti-freeze protection and can still be used normally at -20C. Frozen ingredients are also at risk of bacteria and many users choose to buy two units at the same time. Small, Convenient and Space-SavingSuitable for home and travel, this portable negative ion air purifier is compact and lightweight. measuring 145 x 43x 43mm, this mini air purifier can be moved anywhere you want, saving you more space in your fridge, freezer, shoe cupboard, wardrobe, car, pet's room and more.