Multipurpose O3 Deodorizer - refrigerator deodorizer can effectively reducing unpleasant odors in closed environments like fridges, freezers, shoe cabinets, closets, wardrobes, cars, pet rooms, 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. Within just a few hours, you'll notice how clean your fridge smells. Economical Choice - No consumables, no filters to replace, and its reusable! The USB rechargeable refrigerator odor eliminator is fully automated and maintenance-free, saving you time and money! Stop wasting money on charcoals, baking soda, and deodorizers you will throw away after only a few weeks. Easy to Operate - This fridge odor remover is available in a complete and ready-to-use state. With its single button, the fridge cleaner can perform in dual modes Standard mode (battery life 30 days) and Strong mode (battery life 72 hours). Its built-in battery, when fully charged, can be used for up to 30 days. Handy, Compact Size - Suitable for home and travel, this portable odor eliminator comes in a lightweight, compact size. It weighs only 0.24lbs (110g) with a dimension of 125 x 35 x 34mm, meaning it can be moved at any time, fit anywhere, and save you more space in your fridges and shoe cabinets. Product details Battery capacity:800mah charging: 1.5h, range 40h, ozone concentration greater than 20mg/h, function: ozone sterilisation, air purification, odour elimination, food preservation