Model V400. Visible fine mist. Helps relieve cold & flu symptoms. Use with DynaFilter Air Cleaning Filter (one inside). Air cleaning filter helps remove dust, pollen, odors, and tobacco smoke from room air. Easy to fill and clean. On/off control. Small/medium room size. Up to 24 hours of operation. 1.5 gallon capacity. 2 year warranty. Vapor Therapy for Healthful Living. Water is one nutrient that all forms of life must have to survive. All functions of your body require sufficient moisture to work property. When your body does not have sufficient moisture, it functions poorly. Dry, arid climatic conditions are usually the culprit. Colds and flu can further cause dehydration. Colds and flu begin making their seasonal rounds during fall and winter. Part of the reason for increased respiratory illnesses during this time is because the humidity level in the air reaches its yearly lows. Central heating units in homes and offices further remove moisture from the air. The relative humidity may drop to as low as 10% drier than the air in the Sahara Desert. Most people experience problems when the relative humidity drops below 25%. A comfortable everyday humidity level should not be higher than 50%. When you or your child are experiencing congestion, then the humidity should be kept much higher, 70-80%, during these periods for best effect. Humidifiers and vaporizers help prevent seasonal ailments, providing these benefits: Helps to relieve cold, flu and hay fever symptoms. Helps to relieve dry, irritated and itching skin and eyes. Helps to relieve coughs and dry, scratchy throat. Helps you breathe better and sleep more comfortably. Stops dry out damage to plants, paintings and furniture. Saves you money on your heating bills, since proper humidity lets you feel more comfortable at lower temperatures. Kaz invented the electric vaporizer in 1924 and today is the world's leading manufacturer of vaporizers, humidifiers and other healthcare appliances. Humidifier Buying Guide: Step 1: What are your symptoms? Step 2: Choose from warm, cool or waterless output. Step 3: Select the best product to address your symptoms. Impeller Humidifier (Cool Mist). Symptoms: Stuffy Noses and Coughs: Visible fine mist. Air cleaning filter removes dust, pollen, odors and tobacco smoke. Easy to fill and clean. Evaporative Humidifier (Cool Mist). Symptoms: Dry Skin, Eyes, Nose and Throat: Invisible moisture. Multiple moisture settings Naturally filters impurities from the water. Ultrasonic Humidifier (Cool Mist): Symptoms: Stuffy Noses and Cough and Dry Skin, Eyes, Nose and Throat: Visible cool mist. Quiet operation, won't disturb sleep. Adjustable humidity control. FilterFree Humidifier (Cool Mist): Symptoms: Stuffy Noses and Cough and Dry Skin, Eyes, Nose and Throat: Instant visible mist. No filters to buy ever! Waterless Vaporizer (Scent): Symptoms: Stuffy Noses and Coughs: Releases soothing Vicks scent. Soothing comfort when dry air is not a problem. Available in different formulas ranging from plug-in only to night stand use. Cool Mist restores moisture to dry, indoor air for healthful living. Helps relieve cold and flu symptoms. Read instructions carefully. UL Listed. Made in Mexico.