O3 Pure Rechargeable Refrigerator Purifier Deodorizer and Odor Eliminator Requires no maintenance or replaceable filters and comes complete and ready to use with 110v Charger Built in micro CPU intelligently controls the operation cycle & rest modes and is engineered for high humidity and cold temperatures inside of refrigerators The O3-RRP-01 promotes a clean refrigerator environment while stretching your food budget by keeping fruit and produce fresher longer Eliminates ammonia and ethylene gas from vegetables , refrigerator odors, including onion, garlic and fish The O3-RRP-01 cleans your fridge by utilizing one of nature's most powerful cleaners, ozone to not simply mask odors but to actively remove them