I purchased this at Walmart after my first daughter was born. This Vicks Vaporizer costs about $10.00. It's a great thing to have on hand for when your child is congested, has a cold or stuffy nose. All you do is put water into the base and then plug it in. Sometimes we even placed a little of the children's vicks vapor rub in the water to help clear those stuffy noses. It usually last a few hours before having to replace the water.
It is rather big, so you need a good size storage area to store it. I would suggest when not using it to make sure that it is completely dry before storing it to prevent any problems with mold or mildew.
Adults can even use it if need be.
I use this when my daughter is sick with a stuffy nose or congestion. We fill it with water, and place it on the dresser in her room. It helps her sleep better and she is less congested.
Make sure you keep it out of the way of children.