I’ve tested dozens of humidifiers over the years, and almost every single one of them does a halfway decent job of dumping moisture into the air. But the best ones we’ve found—like the Wi-Fi–enabled ...

There’s nothing more difficult than seeing your little one struggling with a cold or snuffles, all bunged up and restless. At times like this, you may wonder if a humidifier could provide some relief.

Home humidifiers deliver moisture with one of four different types of technology and come in various sizes to suit different living spaces.

Most humidifiers essentially work the same,” explained Dr. Furr. “They take water and aerosolize it so it drifts into the air ...