I've never had a diffuser before so I haven't a clue how they work other than I like the sound of lovely misty scents in my bedroom 
How do they work?
So I know you put essential oils in them. My questions are:
- Are they like these fancy coffee machines where they only work with the specific branded "pods" or can you just put drops of your own essential oils in?
- As someone who is perpetually stuffy nosed and has passed this lovely genetic trait on to my baby, can you put olbas oil or snuffle babe oil into a diffuser?