Naturally boiling water to produce a pure vapor, Vicks Vaporizer releases a warm stream of vapor into the air to relieve cold and flu symptoms. Perfect for nursing sick children back to th, each Vicks Vaporizer includes a soothing, glowing nightlight and features an automatic shut-off. Operating for 18 to 24 hours, Vicks Vaporizer provides warm blasts of moisture to help you get back to your normal self sooner. 1.5 Gallon capacity for 18-24 hour operation per filling and medicine cup allows the use of Vicks vaposteam or Kaz inhalant. Triple wall insulation keeps reservoir water at a safe temperature. Large Night-Light provides added safety and convenience, particularly in children's rooms. Automatic shut-Off when reservoir water reaches minimum level.