Breathe easy and comfortably at home or office with this Vicks waterless vaporizer. It releases a cool mist of soothing vapors from its Vicks scent pad without using water. It"s ideal for people suffering from cold or asthma. Plus, it operates silently and has a soft nightlight, making this home appliance humidifier a perfect bedside companion. It has 3 adjustable settings for customized relief. This cool mist vaporizer can cover an area of about 100 - 300 square feet and has a 18 hour run time.