Life Scents is a revolutionary new technology that gives a true to life fragrance experience. Instead of traditional air fresheners which provide one flat scent, Life Scents products by Air Wick release a constantly changing balance of three different fragrances. These revolutionary products mimic the way scents are experienced organically, providing a multi-layered harmonious set of scent notes. Each Life Scents refill lasts up to 50 days and can be replaced with any Air Wick Freshmatic refill. Simply remove the old fragrance can and insert the new one into the unit with the nozzle facing outward until you hear a click. To remove the fragrance can, remove the batteries and firmly pull the can down. About Air Wick Developed in 1943, Air Wick products are available in a variety of formats and fragrances, from robust automatic sprays to indulgent candles, so you can ensure your home always smells fresh and inviting and creates just the right atmosphere to enhance your mood.