Amazon is now offering the LEVOIT Ultrasonic Classic 200 Cool Mist Humidifier for $33.99 with free shipping. Regularly $40, this is 15% off the going rate, within $2 of the lowest price we have tracked, which was only once before today, and the lowest total we can find. LEVOIT is one of the biggest names in the space and this model is ready to save you from the dry winter months at a more than reasonable rate. Not only does it include an essential oil tray for diffuser action, but it also features a 4-liter water capacity for up to 40-hours of continuous use. Auto shut-off keeps things safe when the water runs out and you can turn the machine’s exterior lights off so it won’t disturb your rest. Rated 4+ stars from over 12,800 Amazon customers. More humidifier deals below.