Spend your winter in a warm, cozy environment without worrying about an increased heating bill. Zone-heat your home with PureHeat 3-in-1, and turn your central thermostat down so that you are only heating the occupied areas of your home without creating a dry environment. PureHeat 3-in-1 isn't just a heater, it also purifies the air to reduce odors caused by pets, cooking, smoke, VOCs, and other contaminants. While the built-in humidifier adds moisture for more comfortable heating. Additionally, the case and front grill remain at a low temperature, ensuring safe heating for the entire family.