The new and innovative Easy Fresh fan dispenser from P-Wave is perfect anywhere in your home. The P-Wave Easy Fresh doesn't require liquid fragrance and annoying refills, like conventional ones, it only needs a P-Wave Easy Fresh cover. Simply click in a cover (sold separately), press a single button and enjoy up to 30 days of fragranced fresh air. Featuring P-Wave's built in program, especially designed to evenly distribute fragrance and save battery, producing up to 6 months of use from ONE battery! This easy to use, inexpensive and long lasting air freshener is also eco-friendly with each cover being 100% recyclable.