6. Make a DIY Humidifier with a Fan
The mechanics of a store-bought evaporative humidifier are fairly simple, involving a water container, a wick to absorb the water, and a fan to blow moisture into the air.
With those basics in mind, a savvy DIYer can build a homemade humidifier for less than $15, using such supplies as a water bottle, a computer fan, and a sponge.