Rainbow Rainmate Room Air Freshener Humidifier Cleaner. This Air Purifier measures about 9" wide and is about 6.5 " tall. Cycles room air through the water and traps dust and odors in the water. Utilizes pure, fresh water to circulate gently scented air into your home environment. Perfectly sized to sit on any desk, counter top or hallway floor. Cycles room air through the water and traps dust and odors in the water. ADD WATER AND A FEW DROPS OF YOUR FAVORITE FRAGRANCE AND ENJOY THE ROOM FULL OF AROMIZED FRESH AIR.