Dry air can be irritating to your baby's nose, ears, and throat, and it can also make it more difficult to breathe. Humidifiers and vaporizers are perfectly suited to combat cold, dry air. What's the difference between the two? Humidifiers use impeller, ultrasonic, or wicking technology to create a cool, soothing mist that replaces humidity into the air that is removed from the air conditioning/heating system or the dry air of winter. A vaporizer on the other hand uses heat to boil water and create warm steam. CapitalKidz.com has several brands of humidifiers and vaporizers to choose from. Select the correct one based on your specific needs and climate.