A Humidifier Is a Common Baby Registry Item. Why Does My Baby Need One? 

Newborns are Obligate Nasal Breathers, meaning that they can only breathe in through their nose for the first 4-6 months of their lives. Their nostrils are so small that even the tiniest clog can make everything from feeding to sleeping difficult and frustrating. Perhaps more importantly, the American Academy of Pediatrics advises against using over-the-counter cold medication for children under the age of 6. For these reasons, many paediatricians and parents recommend using Cool Mist Humidifiers.